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TDMS Study 88035-05 Pathology Tables

NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96
Route: DOSED FEED                                                                                                 Time: 10:48:28

                                                           CORE STUDY




       Facility:  Battelle Columbus Laboratory

       Chemical CAS #:  0000125-33-7

       Lock Date:  11/17/94

       Cage Range:  All

       Reasons For Removal:    All

       Removal Date Range:     All

       Treatment Groups:       Include All




































                                                              Page   1

NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 6| 6| 4| 7| 7| 7| 6| 7| 5| 6| 5| 7| 6| 7| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 6| 9| 7| 1| 2| 2| 2| 2| 2| 4| 8| 6| 2| 4| 2| 6| 2| 0| 6| 2| 0| 2| 2| 2| 6|             
                                           | 0| 7| 5| 5| 3| 3| 3| 6| 3| 1| 2| 6| 2| 1| 4| 4| 4| 3| 8| 4| 2| 3| 3| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    | X                                                                        |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                   2                                                      |             
      Basophilic Focus                     | X  X  X  X  X  X  X           X  X  X     X  X  X  X  X  X  X  X  X  X   |             
      Clear Cell Focus                     |                                     X                                X   |             
      Eosinophilic Focus                   |                         X                                                |             
      Hepatodiaphragmatic Nodule           |                                                                          |             
      Inflammation, Chronic                | 2  1  1  1  2  1  2     2  2     1  2  2     1  2     1  2     2  2  2   |             
      Mixed Cell Focus                     |                            X                             X        X      |             
      Pigmentation, Hemosiderin            |    1     1  1  1  1  1  1     1        1  1  1     3           1     1  2|             
      Bile Duct, Hyperplasia               |       1     2  1           1     1  1     2  2  1  3     1  1  1  1  1   |             
      Hepatocyte, Degeneration             |                                                    4                     |             
      Hepatocyte, Necrosis                 |                                              2           2  1           1|             
      Hepatocyte, Vacuolization Cytoplasmic| 1           1     1  4  3  2  2              1  1  2  1     1     2     4|             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               |    +                 +                 +           +                     |             
      Accessory Spleen                     |                                                                          |             
      Fat, Necrosis                        |    4                                   4           4                     |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
      Acinus, Atrophy                      |             1     2                                   1  2               |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Hyperplasia              |                      2                                         3         |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                                                                4         |             
      Epithelium, Ulcer                    |                                                                4         |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              |             2     2                       1     2  2           2  2      |             
      Atrium, Thrombosis                   |                               2                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   2                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 6| 6| 4| 7| 7| 7| 6| 7| 5| 6| 5| 7| 6| 7| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 6| 9| 7| 1| 2| 2| 2| 2| 2| 4| 8| 6| 2| 4| 2| 6| 2| 0| 6| 2| 0| 2| 2| 2| 6|             
                                           | 0| 7| 5| 5| 3| 3| 3| 6| 3| 1| 2| 6| 2| 1| 4| 4| 4| 3| 8| 4| 2| 3| 3| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Fatty                  |          1           1        1           1           3        1        3|             
      Hyperplasia                          | 2                             2                                          |             
      Hypertrophy                          |                                                                          |             
      Necrosis                             |                                                    3                     |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |    1                          2                       1        2     2   |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  M  +  +  +  +  +  M  M  +  +  +  +  +  +  +  +  +  M  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                                                                          |             
      Pars Distalis, Cyst                  |       3  1        2  2  2     3     3     2  2           2  2     2      |             
      Pars Distalis, Hyperplasia           | 2  2  3  2        2     2           2     2  3     2  4     2     2  3  3|             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  |                   1                    1                 1        2  3   |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |    2        3  2                 2     2  4     4              4  2      |             
      Inflammation, Chronic Active         |          1  2     2                                                      |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                               3           3                       4      |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                                          |             
      Hydrometra                           |    3                                               3                     |             
      Hyperplasia, Cystic                  |                                     2                                    |             
      Inflammation, Chronic Active         |                                                                          |             
                                            __________________________________________________________________________|             
   Vagina                                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 4  4                                                                     |             
      Hyperplasia, Mast Cell               |          4                                                               |             
      Hyperplasia                          |                                                                          |             
      Myelofibrosis                        |                      2                       3                          1|             
                                            __________________________________________________________________________|             
   Lymph Node                              |             +        +        +           +  +     +        +            |             
      Mediastinal, Hyperplasia, Histiocytic|                                           3                              |             
      Mediastinal, Necrosis                |                                                    3                     |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page   3                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 6| 6| 4| 7| 7| 7| 6| 7| 5| 6| 5| 7| 6| 7| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 6| 9| 7| 1| 2| 2| 2| 2| 2| 4| 8| 6| 2| 4| 2| 6| 2| 0| 6| 2| 0| 2| 2| 2| 6|             
                                           | 0| 7| 5| 5| 3| 3| 3| 6| 3| 1| 2| 6| 2| 1| 4| 4| 4| 3| 8| 4| 2| 3| 3| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Accessory Spleen                     |                                                                          |             
      Fibrosis                             |                                                                          |             
      Hematopoietic Cell Proliferation     |          2                                                               |             
      Necrosis                             |                      4                             4                     |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |    4                                                                     |             
      Hyperplasia, Cystic                  | 2     3     2  2  2  3     2  3           2  2  2     3        1  2  3  2|             
      Inflammation, Chronic Active         |                                                                4         |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperkeratosis                       |                   3                                                      |             
      Epidermis, Hyperplasia               |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Osteopetrosis                        |                                                 4                       2|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                              1                           |             
      Hydrocephalus                        |                            2                                             |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
      Necrosis                             |                                                                          |             
      Alveolar Epithelium, Hyperplasia     |       1                                         3     2              3   |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      | 1  2  1     1  1  1        1        1  1        1        1     1  1     1|             
      Artery, Vein, Mineralization         | 1        1  1     1  1        1  1  1  1     1  1  1  1  1  1  1     1  1|             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |    1  2                                                                  |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                         2                                                |             
      Inflammation, Suppurative            |                      2                                                   |             
      Nasolacrimal Duct, Inflammation,     |                                                                          |             
           Suppurative                     |             1                                                            |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
      Lens, Cataract                       |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page   4                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 6| 6| 4| 7| 7| 7| 6| 7| 5| 6| 5| 7| 6| 7| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6|             
                             DAY ON TEST   | 6| 9| 7| 1| 2| 2| 2| 2| 2| 4| 8| 6| 2| 4| 2| 6| 2| 0| 6| 2| 0| 2| 2| 2| 6|             
                                           | 0| 7| 5| 5| 3| 3| 3| 6| 3| 1| 2| 6| 2| 1| 4| 4| 4| 3| 8| 4| 2| 3| 3| 2| 8|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
      Retina, Degeneration                 |                                                                          |             
                                            __________________________________________________________________________|             
   Zymbal's Gland                          |                                                             +            |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |       1  1                 1  1  1     1     1        1                  |             
      Nephropathy, Chronic                 | 1  1  1  1  1  2  1  1  2  2  1     1  1     1  2     2  1  1  2  2  1   |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page   5                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 6| 6| 7| 7| 5| 5| 7| 3| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7|            |
                             DAY ON TEST   | 2| 2| 2| 2| 4| 2| 2| 2| 6| 3| 0| 6| 0| 2| 2| 0| 2| 2| 3| 4| 2| 3| 4| 2| 2|            |
                                           | 4| 3| 2| 4| 6| 6| 4| 4| 1| 6| 2| 7| 2| 3| 4| 2| 4| 3| 8| 1| 3| 4| 0| 3| 4|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Parasite Metazoan                    |                                                                          |      1     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                              3                           |      2  2.5|
      Basophilic Focus                     | X  X     X  X     X  X     X  X  X  X  X  X  X     X  X     X  X     X  X|     39     |
      Clear Cell Focus                     |          X                                         X  X     X            |      6     |
      Eosinophilic Focus                   |                                           X                              |      2     |
      Hepatodiaphragmatic Nodule           |    X  X                       X                       X     X            |      5     |
      Inflammation, Chronic                | 2  1     1  1     2  2        2     2  1  1  1  1  2  1     1  1  2  2  1|     38  1.5|
      Mixed Cell Focus                     | X                                         X                              |      5     |
      Pigmentation, Hemosiderin            |       1     2  1     1  1              1     1        1           2  1   |     25  1.2|
      Bile Duct, Hyperplasia               |    1  3  1     2  1     2     1     2           2     1     1  1  2  1  1|     30  1.4|
      Hepatocyte, Degeneration             |                                                                          |      1  4.0|
      Hepatocyte, Necrosis                 |                                                                          |      4  1.5|
      Hepatocyte, Vacuolization Cytoplasmic| 1     1        4     1  4                 1  1           2  1     2  1   |     25  1.8|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      |                                           2                              |      1  2.0|
                                            __________________________________________________________________________|____________|
   Mesentery                               |    +  +                       +                 +        +               |   9        |
      Accessory Spleen                     |                                                 X                        |      1     |
      Fat, Necrosis                        |    4  4                       4                          4               |      7  4.0|
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                                                          2               |      1  2.0|
      Acinus, Atrophy                      |                      2                          1  1        1            |      8  1.4|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Epithelium, Hyperplasia              |                                                          2        3      |      4  2.5|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                                                   4      |      2  4.0|
      Epithelium, Ulcer                    |                                                                   4      |      2  4.0|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   6                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 6| 6| 7| 7| 5| 5| 7| 3| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7|            |
                             DAY ON TEST   | 2| 2| 2| 2| 4| 2| 2| 2| 6| 3| 0| 6| 0| 2| 2| 0| 2| 2| 3| 4| 2| 3| 4| 2| 2|            |
                                           | 4| 3| 2| 4| 6| 6| 4| 4| 1| 6| 2| 7| 2| 3| 4| 2| 4| 3| 8| 1| 3| 4| 0| 3| 4|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cardiomyopathy, Chronic              | 2  1     2     2  2  1        1           1     2  2  2     1        1  2|     21  1.7|
      Atrium, Thrombosis                   |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Fatty                  | 2              2        3        1        1     2                        |     13  1.7|
      Hyperplasia                          |    2  2  1        1                 2           2     1           2      |     10  1.7|
      Hypertrophy                          |                                                          1               |      1  1.0|
      Necrosis                             |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                               1                                          |      6  1.5|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | M  +  +  +  +  M  +  +  +  M  +  +  +  M  +  +  +  +  +  +  M  M  M  +  +|  38        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  49        |
      Angiectasis                          |                1                                                         |      1  1.0|
      Pars Distalis, Cyst                  |    2     2  2     2  1  2        1        2        2     4           2  2|     24  2.1|
      Pars Distalis, Hyperplasia           | 2  2  3  2              2           2     2        2        2  3     2   |     26  2.3|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      C-Cell, Hyperplasia                  | 1  2  1  1        1     2     1     1     1                              |     14  1.4|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |                   2                       2  4                           |     12  2.8|
      Inflammation, Chronic Active         |                                  1                                       |      4  1.5|
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      3  3.3|
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                              4                           |      1  4.0|
      Hydrometra                           |                                                                          |      2  3.0|
      Hyperplasia, Cystic                  |                                                    2                     |      2  2.0|
      Inflammation, Chronic Active         |                                              2                           |      1  2.0|
                                            __________________________________________________________________________|____________|
   Vagina                                  |             +                                                            |   1        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   7                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 6| 6| 7| 7| 5| 5| 7| 3| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7|            |
                             DAY ON TEST   | 2| 2| 2| 2| 4| 2| 2| 2| 6| 3| 0| 6| 0| 2| 2| 0| 2| 2| 3| 4| 2| 3| 4| 2| 2|            |
                                           | 4| 3| 2| 4| 6| 6| 4| 4| 1| 6| 2| 7| 2| 3| 4| 2| 4| 3| 8| 1| 3| 4| 0| 3| 4|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
      Hyperplasia                          |                                                                          |      2  4.0|
      Hyperplasia, Mast Cell               |                                                                          |      1  4.0|
      Hyperplasia                          |             3                    3                                3      |      3  3.0|
      Myelofibrosis                        |                2                                                         |      4  2.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |       +        +        +                                               +|  11        |
      Mediastinal, Hyperplasia, Histiocytic|                                                                          |      1  3.0|
      Mediastinal, Necrosis                |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Accessory Spleen                     |                      X           X                                       |      2     |
      Fibrosis                             |                                                                         3|      1  3.0|
      Hematopoietic Cell Proliferation     |                                  3                                       |      2  2.5|
      Necrosis                             |                                                                          |      2  4.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  4.0|
      Hyperplasia, Cystic                  | 3  1  2  2  2     2     3  1  2     2  2  3  4  3  2  2  3     3  2  2  2|     37  2.3|
      Inflammation, Chronic Active         |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperkeratosis                       |                                                                          |      1  3.0|
      Epidermis, Hyperplasia               |                                                             2            |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Osteopetrosis                        |                                                                          |      2  3.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                                                          |      1  1.0|
      Hydrocephalus                        |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic Active         |                      2                                                   |      1  2.0|
      Necrosis                             |                         3                                                |      1  3.0|
      Alveolar Epithelium, Hyperplasia     |                                                                         3|      5  2.4|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   8                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 7| 6| 6| 7| 7| 5| 5| 7| 3| 7| 7| 7| 7| 7| 7| 6| 6| 7| 6| 6| 7| 7|            |
                             DAY ON TEST   | 2| 2| 2| 2| 4| 2| 2| 2| 6| 3| 0| 6| 0| 2| 2| 0| 2| 2| 3| 4| 2| 3| 4| 2| 2|            |
                                           | 4| 3| 2| 4| 6| 6| 4| 4| 1| 6| 2| 7| 2| 3| 4| 2| 4| 3| 8| 1| 3| 4| 0| 3| 4|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      | 1  1  1  1  1     1  1        1  1  1  1  2  2  1  1  1  1  1  1  1  1  1|     36  1.1|
      Artery, Vein, Mineralization         |    1  1  1  1  1  1  1  1        1  1  1  1  1  1  1     1     1  1  1  1|     38  1.0|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                   1                       2                              |      4  1.5|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |          3                                                               |      2  2.5|
      Inflammation, Suppurative            |                                                                          |      1  2.0|
      Nasolacrimal Duct, Inflammation,     |                                                                          |            |
           Suppurative                     | 2                                                                        |      2  1.5|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                   +      |   1        |
      Lens, Cataract                       |                                                                   2      |      1  2.0|
      Retina, Degeneration                 |                                                                   3      |      1  3.0|
                                            __________________________________________________________________________|____________|
   Zymbal's Gland                          |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |             1  2                 1                    1                  |     12  1.1|
      Nephropathy, Chronic                 | 2  1  1  2  1  2  2  2     1  1     1  1  1  1  2  1     3  1  1  1  2  2|     43  1.4|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page   9                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 7| 5| 7| 7| 7| 4| 7| 7| 7| 6| 4| 7| 4| 7| 7| 7| 7| 4| 7| 7| 7| 7| 6| 4|             
                             DAY ON TEST   | 7| 2| 7| 2| 2| 2| 1| 2| 2| 2| 1| 1| 2| 1| 2| 2| 2| 0| 2| 2| 2| 2| 2| 8| 6|             
                                           | 8| 4| 8| 3| 3| 3| 9| 2| 2| 4| 8| 5| 4| 0| 4| 3| 3| 2| 6| 3| 3| 3| 4| 2| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |                                                 X                        |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     | X  X  X     X  X     X  X  X  X     X  X  X  X  X  X     X  X  X  X      |             
      Clear Cell Focus                     |                         X                       X                        |             
      Hematopoietic Cell Proliferation     |                                                                          |             
      Hepatodiaphragmatic Nodule           | X              X                    X                    X  X  X         |             
      Inflammation, Chronic                |    2  3  2  3  3     3  3  2  2  2  3  1  2  2  3  2     3  2  2  2      |             
      Pigmentation, Hemosiderin            |    1        1        1  1  1  1           1                    1     2   |             
      Bile Duct, Hyperplasia               |    1     1     2     1     1  1     2     1  1     1              1  3  2|             
      Hepatocyte, Degeneration, Cystic     |                                                                      2   |             
      Hepatocyte, Necrosis                 |                                                                          |             
      Hepatocyte, Vacuolization Cytoplasmic| 1  2  2  1  3  3     2  3  2  1     3     1  2  3  2     3  2  2  2  3  3|             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Degeneration                     |                                                                          |             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      | 1  1  1  1  1  1     1  1  1  1     1     1  1  1  1     1  1  1  1      |             
                                            __________________________________________________________________________|             
   Mesentery                               | +     +              +              +                                   +|             
      Fat, Inflammation, Chronic Active    |       3                                                                  |             
      Fat, Necrosis                        | 4                    4              4                                    |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |             2                                                            |             
      Acinus, Atrophy                      |                                                             1  1         |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parotid Gland, Atrophy               |                                                                          |             
      Parotid Gland, Inflammation, Chronic |                                                                          |             
          Active                           |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Hyperplasia              |                               2                                          |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                                                                          |             
      Epithelium, Ulcer                    |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Erosion                  |                                  2                                       |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                                                                          |             
      Epithelium, Ulcer                    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  10                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 7| 5| 7| 7| 7| 4| 7| 7| 7| 6| 4| 7| 4| 7| 7| 7| 7| 4| 7| 7| 7| 7| 6| 4|             
                             DAY ON TEST   | 7| 2| 7| 2| 2| 2| 1| 2| 2| 2| 1| 1| 2| 1| 2| 2| 2| 0| 2| 2| 2| 2| 2| 8| 6|             
                                           | 8| 4| 8| 3| 3| 3| 9| 2| 2| 4| 8| 5| 4| 0| 4| 3| 3| 2| 6| 3| 3| 3| 4| 2| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              |    2  2  1     1     1  1  2  2     2  1  1  2     2  2  2     2  2     1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Fatty                  |          2     2                                1           1            |             
      Hyperplasia                          |                2        1                    2  2  1              1      |             
      Hypertrophy                          |                                                                          |             
      Inflammation, Granulomatous          |                                                 1                        |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |    1                    2  2                                             |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  M  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  |          2     2  2     2  2        2        2           2  4            |             
      Pars Distalis, Hyperplasia           | 2  2        2  2  2     2  2     2  2     3              2  2        2  2|             
      Pars Intermedia, Cyst                |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  |             1           2           1        2           1        2      |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                 4                        |             
      Hyperplasia                          |                         2                                   2            |             
      Inflammation, Chronic Active         |             1                    1              3           2           1|             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                         3|             
      Cyst                                 |                                              2                           |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |             2                                                            |             
      Edema                                |                                  4                                       |             
      Hemorrhage                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                         4|             
      Hyperplasia, Histiocytic             |                                           3                              |             
      Hyperplasia                          |    3        3                                                            |             
      Myelofibrosis                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  11                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 7| 5| 7| 7| 7| 4| 7| 7| 7| 6| 4| 7| 4| 7| 7| 7| 7| 4| 7| 7| 7| 7| 6| 4|             
                             DAY ON TEST   | 7| 2| 7| 2| 2| 2| 1| 2| 2| 2| 1| 1| 2| 1| 2| 2| 2| 0| 2| 2| 2| 2| 2| 8| 6|             
                                           | 8| 4| 8| 3| 3| 3| 9| 2| 2| 4| 8| 5| 4| 0| 4| 3| 3| 2| 6| 3| 3| 3| 4| 2| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              |                   +                                                  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosis                             |                                                                      2   |             
      Hematopoietic Cell Proliferation     |    3                                                                     |             
      Necrosis                             |                                                                         4|             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Cyst                                 |                         2                                                |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Cystic                  | 2  2  2  3  2  3  2  3  2  3  2  1  2  3     2  3  2  1  2  2  2  1  3  2|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Osteopetrosis                        |                            4                                            3|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                   2                                   2                  |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                         +                                                |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                     2                             2      |             
      Alveolar Epithelium, Hyperplasia     |                      2                                                   |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      | 1  1  1  1  1  1     1  1  2  1  1  2  1  2  2  1  2     1  1  1  1      |             
      Artery, Vein, Mineralization         |    1  1  1  1  1  1  1  1     1  1  1  1  1  1  1  1        1  1  1  1  1|             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |             1                                                            |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|             
      Inflammation, Suppurative            |                                                                          |             
      Nasolacrimal Duct, Inflammation,     |                                                                          |             
           Suppurative                     |                   2        4                                             |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
      Lens, Cataract                       |                                                                          |             
      Retina, Degeneration                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  12                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 7| 5| 7| 7| 7| 4| 7| 7| 7| 6| 4| 7| 4| 7| 7| 7| 7| 4| 7| 7| 7| 7| 6| 4|             
                             DAY ON TEST   | 7| 2| 7| 2| 2| 2| 1| 2| 2| 2| 1| 1| 2| 1| 2| 2| 2| 0| 2| 2| 2| 2| 2| 8| 6|             
                                           | 8| 4| 8| 3| 3| 3| 9| 2| 2| 4| 8| 5| 4| 0| 4| 3| 3| 2| 6| 3| 3| 3| 4| 2| 6|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
      Mineralization                       | 1     1           1           1  1     1              2                 1|             
      Nephropathy, Chronic                 |    1     1  1  2     2  1  2  2  1  2  1  2  2  2  1     2  2  1  3  1   |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  13                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 6| 7| 7| 7| 4| 6| 7| 6| 5| 5| 6| 7| 7| 7| 7| 6| 7| 7| 6| 3| 5|            |
                             DAY ON TEST   | 2| 2| 2| 7| 7| 2| 2| 2| 5| 0| 2| 1| 1| 8| 7| 2| 2| 2| 2| 1| 0| 2| 4| 6| 6|            |
                                           | 4| 4| 3| 5| 5| 4| 4| 3| 6| 5| 4| 8| 1| 4| 5| 4| 2| 4| 3| 2| 2| 3| 5| 7| 7|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Parasite Metazoan                    |          X                                                               |      2     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     | X  X     X     X  X  X     X  X  X     X  X  X        X     X  X     X   |     35     |
      Clear Cell Focus                     |                                     X              X  X                  |      5     |
      Hematopoietic Cell Proliferation     |             1                                                            |      1  1.0|
      Hepatodiaphragmatic Nodule           | X                    X        X  X  X                 X        X         |     13     |
      Inflammation, Chronic                | 3  2  2     1  2  2  2        2  2     1  2  2  3  2  2     1  1  1      |     38  2.1|
      Pigmentation, Hemosiderin            | 1     1                                1           1              1      |     14  1.1|
      Bile Duct, Hyperplasia               | 1           1     1  1        1                 1  2     2  1  1         |     23  1.3|
      Hepatocyte, Degeneration, Cystic     |                                                                          |      1  2.0|
      Hepatocyte, Necrosis                 |             2                                                            |      1  2.0|
      Hepatocyte, Vacuolization Cytoplasmic| 3  2  2  1  3  2  2  1     1  2  2  3  1  3  2  2  2  2  2  2  1  1     2|     44  2.0|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Degeneration                     |             3                                                            |      1  3.0|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      | 1  1  1  1  1  1  1  1        1  1        1  1  1  1  1     1  1         |     36  1.0|
                                            __________________________________________________________________________|____________|
   Mesentery                               |                         +                             +  +        +     +|  10        |
      Fat, Inflammation, Chronic Active    |                                                                          |      1  3.0|
      Fat, Necrosis                        |                                                       4           4      |      5  4.0|
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                                          |      1  2.0|
      Acinus, Atrophy                      | 2  2              1           1                             1            |      7  1.3|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Parotid Gland, Atrophy               | 2                                                                        |      1  2.0|
      Parotid Gland, Inflammation, Chronic |                                                                          |            |
          Active                           | 1                                                                        |      1  1.0|
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Epithelium, Hyperplasia              |    2                                                                 2  3|      4  2.3|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                     2                                   1|      2  1.5|
      Epithelium, Ulcer                    |                                     4                                   4|      2  4.0|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  14                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 6| 7| 7| 7| 4| 6| 7| 6| 5| 5| 6| 7| 7| 7| 7| 6| 7| 7| 6| 3| 5|            |
                             DAY ON TEST   | 2| 2| 2| 7| 7| 2| 2| 2| 5| 0| 2| 1| 1| 8| 7| 2| 2| 2| 2| 1| 0| 2| 4| 6| 6|            |
                                           | 4| 4| 3| 5| 5| 4| 4| 3| 6| 5| 4| 8| 1| 4| 5| 4| 2| 4| 3| 2| 2| 3| 5| 7| 7|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
      Epithelium, Erosion                  |                                                                      1   |      2  1.5|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                                                         2|      1  2.0|
      Epithelium, Ulcer                    |                                                                         4|      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy, Chronic              | 2     2  1                             1  1  2  2  2              2  2  1|     29  1.6|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Fatty                  |    3     1              3        2              2           1           4|     11  2.0|
      Hyperplasia                          |             2                    1                                       |      8  1.5|
      Hypertrophy                          |                                                             2            |      1  2.0|
      Inflammation, Granulomatous          |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |             2                                            1               |      5  1.6|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  M  +  +  +|  44        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Pars Distalis, Cyst                  |    3     3  2     2  2  3  2  2     1        2  1  2           2     1  2|     24  2.1|
      Pars Distalis, Hyperplasia           |       3     2     2     3  2  2        3        1  2        3        2   |     25  2.2|
      Pars Intermedia, Cyst                |          2                                                               |      1  2.0|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      C-Cell, Hyperplasia                  |          2  1  1  1              1     1  1        1        2            |     15  1.3|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +|  49        |
      Cyst                                 |    3                                                                     |      2  3.5|
      Hyperplasia                          |          4           1        2                                          |      5  2.2|
      Inflammation, Chronic Active         | 1  2                 1                          3                 2      |     10  1.7|
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      1  3.0|
      Cyst                                 | 2                                                              3  3      |      4  2.5|
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  15                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 6| 7| 7| 7| 4| 6| 7| 6| 5| 5| 6| 7| 7| 7| 7| 6| 7| 7| 6| 3| 5|            |
                             DAY ON TEST   | 2| 2| 2| 7| 7| 2| 2| 2| 5| 0| 2| 1| 1| 8| 7| 2| 2| 2| 2| 1| 0| 2| 4| 6| 6|            |
                                           | 4| 4| 3| 5| 5| 4| 4| 3| 6| 5| 4| 8| 1| 4| 5| 4| 2| 4| 3| 2| 2| 3| 5| 7| 7|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
      Angiectasis                          |                                                                          |      1  2.0|
      Edema                                |                                                                          |      1  4.0|
      Hemorrhage                           |             4                                                            |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      1  4.0|
      Hyperplasia, Histiocytic             | 4                                               2                        |      3  3.0|
      Hyperplasia                          |    3     3  4        2              3        2  2           3            |     10  2.8|
      Myelofibrosis                        |                                                          3               |      1  3.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |                         +  +                             +              +|   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Fibrosis                             |                                                                          |      1  2.0|
      Hematopoietic Cell Proliferation     |    3        3                                                            |      3  3.0|
      Necrosis                             |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  45        |
      Cyst                                 |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Cystic                  | 2  3  2  2  2  2     2  2     1  4  1  2  3  2  2  2  3  4  2           2|     44  2.2|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Osteopetrosis                        |                   4                          2  2                        |      5  3.0|
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                                         +|   1        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                         2                                                |      3  2.0|
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |             1        1                                                   |      4  1.5|
      Alveolar Epithelium, Hyperplasia     |    2              2           2              2                           |      5  2.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  16                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 6| 7| 7| 7| 4| 6| 7| 6| 5| 5| 6| 7| 7| 7| 7| 6| 7| 7| 6| 3| 5|            |
                             DAY ON TEST   | 2| 2| 2| 7| 7| 2| 2| 2| 5| 0| 2| 1| 1| 8| 7| 2| 2| 2| 2| 1| 0| 2| 4| 6| 6|            |
                                           | 4| 4| 3| 5| 5| 4| 4| 3| 6| 5| 4| 8| 1| 4| 5| 4| 2| 4| 3| 2| 2| 3| 5| 7| 7|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      | 1  2  1  1  1  1  1  1     1  1  1     1  1  1  1  1  1  1  2  1  1  1  1|     44  1.2|
      Artery, Vein, Mineralization         |    1  1  1     1  1  1  1  1  1  1  1        1  1  1  1  1        1     1|     39  1.0|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Suppurative            |                                                             1            |      1  1.0|
      Nasolacrimal Duct, Inflammation,     |                                                                          |            |
           Suppurative                     |                                                                         3|      3  3.0|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     | +                                                                        |   1        |
      Lens, Cataract                       | 4                                                                        |      1  4.0|
      Retina, Degeneration                 | 4                                                                        |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                3         |      1  3.0|
      Mineralization                       |                                                          1           1   |     10  1.1|
      Nephropathy, Chronic                 | 1  3  2  1  1  2  2  1  1     1  2  1  1  1  1  1  2  2  2  1  1  2  2   |     43  1.5|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |             1                                                            |      1  1.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  17                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 7| 3| 7| 6| 7|             
                             DAY ON TEST   | 2| 2| 8| 2| 2| 0| 4| 2| 2| 2| 0| 0| 9| 2| 2| 2| 2| 2| 3| 2| 2| 8| 2| 6| 2|             
                                           | 3| 2| 2| 3| 3| 3| 3| 2| 4| 2| 3| 7| 0| 4| 4| 3| 4| 2| 4| 4| 4| 9| 4| 8| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                               3                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |                                              X                           |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |          2                                                               |             
      Basophilic Focus                     | X  X  X  X  X     X  X  X     X  X     X  X  X  X  X     X  X        X  X|             
      Eosinophilic Focus                   |                                     X                                    |             
      Hepatodiaphragmatic Nodule           |    X     X                 X  X        X        X  X        X        X   |             
      Inflammation, Chronic                | 3  2  1  3  2     1  2  3  1  2  2     3  3  2  3  2     1  2  1  1  2  2|             
      Mixed Cell Focus                     |                                                                          |             
      Pigmentation, Hemosiderin            |          1           1     2  1  1  2           2                        |             
      Bile Duct, Hyperplasia               | 1  1  1  2  2     1  1     2  1  1  2        1  1  2  2  1  1     1     1|             
      Hepatocyte, Necrosis                 |                            1  2                                          |             
      Hepatocyte, Vacuolization Cytoplasmic| 3  2  2  2  2  1  1  2  3  2  1  1  1  2  2  2  3  2  3  1  1     1  2  1|             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      | 2  2  2  2  2        2  2        2     2  2  2  2  2     2  2  2  2  3  2|             
                                            __________________________________________________________________________|             
   Mesentery                               |                            +        +  +                                 |             
      Fat, Necrosis                        |                            4           4                                 |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
      Acinus, Atrophy                      |                                                    2        1     1  1  2|             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Basal Cell              |                                                                          |             
      Epithelium, Hyperplasia              |                   3                                                      |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                   3                                                      |             
      Epithelium, Ulcer                    |                   4                                                      |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              | 2  2     2     2  1  2        1  1     2     2           2        1     1|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  18                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 7| 3| 7| 6| 7|             
                             DAY ON TEST   | 2| 2| 8| 2| 2| 0| 4| 2| 2| 2| 0| 0| 9| 2| 2| 2| 2| 2| 3| 2| 2| 8| 2| 6| 2|             
                                           | 3| 2| 2| 3| 3| 3| 3| 2| 4| 2| 3| 7| 0| 4| 4| 3| 4| 2| 4| 4| 4| 9| 4| 8| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM - cont                   |                                                                          |             
                                           |                                                                          |             
      Angiectasis                          |                                                                      3   |             
      Atrophy                              |                                                                          |             
      Degeneration, Fatty                  |    1                 2  1                             2                  |             
      Hyperplasia                          |    1        2           2        1  2                                    |             
      Hypertrophy                          |                      3                                                   |             
      Inflammation, Chronic Active         |                                                             1            |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                            1  1     2        1        1  1               |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  M  M  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  M  +  +|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  | 1     2  3  3           1  2        3  2  2  2     2  2  1  1  1  2  2  2|             
      Pars Distalis, Hyperplasia           | 3        2  2              2  2     3        2  2     2        2  2     2|             
      Pars Intermedia, Cyst                |                                                                1         |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  |       2  1                                                     2         |             
      Follicular Cell, Hyperplasia         |                                                                   2      |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                             3            |             
      Hyperplasia                          |    2  2                                   2                             2|             
      Inflammation, Chronic Active         |                                                                          |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                         4                                         4      |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Cystic                  |                                                                         4|             
                                            __________________________________________________________________________|             
   Vagina                                  |                                                                          |             
      Cyst                                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |       4                                                        4         |             
      Myelofibrosis                        |                                                       2                  |             
                                            __________________________________________________________________________|             
   Lymph Node                              |                +           +        +                 +        +         |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |                                                                   3      |             
      Inflammation, Chronic Active         |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |          4                                                               |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  19                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 7| 3| 7| 6| 7|             
                             DAY ON TEST   | 2| 2| 8| 2| 2| 0| 4| 2| 2| 2| 0| 0| 9| 2| 2| 2| 2| 2| 3| 2| 2| 8| 2| 6| 2|             
                                           | 3| 2| 2| 3| 3| 3| 3| 2| 4| 2| 3| 7| 0| 4| 4| 3| 4| 2| 4| 4| 4| 9| 4| 8| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Fibrosis                             |                                                                          |             
      Hematopoietic Cell Proliferation     |                                                                          |             
      Hemorrhage                           |                4                                                         |             
      Necrosis                             |                            3                                             |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  M  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Cystic                  | 2  1  1  2  2  2  2  2  2  2  2  2  3  2     2        2  3  2     2  1  2|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperkeratosis                       |                                                                          |             
      Inflammation, Chronic Active         |                                           4                              |             
      Ulcer                                |                                           4                              |             
      Epidermis, Hyperplasia               |                                           2                              |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                                          |             
      Hydrocephalus                        |                   3                                                      |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
      Alveolar Epithelium, Hyperplasia     |             3                       2                                    |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      | 1  1  1  2  1     1  1  1  1  1  1  1  1  1  1  1  1  1     1     1  1  2|             
      Artery, Vein, Mineralization         |    1  1  1  1  1     1  1  1  1  1  1  1  1  1  1  1  1              1  1|             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |    1        2                                                            |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                3                                                  2      |             
      Nasolacrimal Duct, Inflammation,     |                                                                          |             
           Suppurative                     |                2  1                                                      |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
      Lens, Cataract                       |                                                                          |             
      Retina, Degeneration                 |                                                                          |             
                                            __________________________________________________________________________|             
   Harderian Gland                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  20                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| 7| 7| 3| 7| 6| 7|             
                             DAY ON TEST   | 2| 2| 8| 2| 2| 0| 4| 2| 2| 2| 0| 0| 9| 2| 2| 2| 2| 2| 3| 2| 2| 8| 2| 6| 2|             
                                           | 3| 2| 2| 3| 3| 3| 3| 2| 4| 2| 3| 7| 0| 4| 4| 3| 4| 2| 4| 4| 4| 9| 4| 8| 2|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
                                            __________________________________________________________________________|             
   Zymbal's Gland                          |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                   1                                            1         |             
      Nephropathy, Chronic                 | 2  2  1  2  2     1  2  2  2  1  2     2  2  1  2  2  1  2  1     2  1  1|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  21                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 4| 5| 6| 7| 7| 7| 5| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 6|            |
                             DAY ON TEST   | 2| 2| 2| 1| 5| 5| 1| 2| 2| 2| 0| 4| 2| 2| 2| 2| 2| 2| 2| 2| 9| 2| 0| 9| 9|            |
                                           | 4| 3| 4| 8| 6| 0| 0| 4| 2| 2| 1| 4| 2| 3| 3| 3| 2| 4| 4| 2| 5| 3| 9| 3| 6|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Parasite Metazoan                    |    X                                                                     |      2     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                                                          |      1  2.0|
      Basophilic Focus                     | X  X  X     X        X  X  X     X  X  X  X  X  X  X  X        X  X  X  X|     38     |
      Eosinophilic Focus                   |                                                                          |      1     |
      Hepatodiaphragmatic Nodule           |             X                    X                                       |     11     |
      Inflammation, Chronic                | 2  1  2     1  1     2  4  2  1     3  2  1  2  2  1  3  2  2  2  2  2  2|     44  2.0|
      Mixed Cell Focus                     |                                                       X                  |      1     |
      Pigmentation, Hemosiderin            |                         3                    1  1           1        1   |     12  1.4|
      Bile Duct, Hyperplasia               | 1  1  1  1           1  4  1  1     1     2     1  1     2  2  2        1|     35  1.4|
      Hepatocyte, Necrosis                 |                                  3                                       |      3  2.0|
      Hepatocyte, Vacuolization Cytoplasmic| 2  1  2  3  1  1  2  2  1  2     1  2  2     3  2     2  3  2  1  2  2  2|     46  1.8|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      | 2  2  2        2     2     2  2     2  2  2  2  2  2  3  2     2  2  2  2|     38  2.1|
                                            __________________________________________________________________________|____________|
   Mesentery                               | +                 +                 +                       +            |   7        |
      Fat, Necrosis                        | 4                                   4                       4            |      5  4.0|
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                        1                                 |      1  1.0|
      Acinus, Atrophy                      |                1        1              1  1  1              2            |     11  1.3|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Basal Cell              |                                                                   2      |      1  2.0|
      Epithelium, Hyperplasia              |                   2                                                  2   |      3  2.3|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                   2                                                      |      2  2.5|
      Epithelium, Ulcer                    |                   4                                                      |      2  4.0|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  22                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 4| 5| 6| 7| 7| 7| 5| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 6|            |
                             DAY ON TEST   | 2| 2| 2| 1| 5| 5| 1| 2| 2| 2| 0| 4| 2| 2| 2| 2| 2| 2| 2| 2| 9| 2| 0| 9| 9|            |
                                           | 4| 3| 4| 8| 6| 0| 0| 4| 2| 2| 1| 4| 2| 3| 3| 3| 2| 4| 4| 2| 5| 3| 9| 3| 6|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
      Cardiomyopathy, Chronic              | 2  2           2     1  2     1  2  2        2     2  1  2  2  1         |     27  1.7|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |    2                                                                     |      1  2.0|
      Angiectasis                          |                                                                          |      1  3.0|
      Atrophy                              |                                                             3            |      1  3.0|
      Degeneration, Fatty                  |          1        3                                   2           1      |      8  1.6|
      Hyperplasia                          |       2                                   1           2  2              1|     10  1.6|
      Hypertrophy                          |                                                                   1      |      2  2.0|
      Inflammation, Chronic Active         |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +|  49        |
      Hyperplasia                          |          1                                                        2  1   |      9  1.2|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  M  +  +  +  M  +  +  +  +  M  +  +  +  M  +|  42        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Pars Distalis, Cyst                  | 2     2  3  3        3  2  3  2     2  3  3  2  2  2  2        2  2     3|     36  2.1|
      Pars Distalis, Hyperplasia           | 2     2     2     3  2  2  2  2                 2  2  2  2     3        2|     26  2.2|
      Pars Intermedia, Cyst                |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      C-Cell, Hyperplasia                  | 2  2                    1        2     1     1     2     1               |     11  1.5|
      Follicular Cell, Hyperplasia         |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  3.0|
      Hyperplasia                          |       2              2     3           3                                 |      8  2.3|
      Inflammation, Chronic Active         |                            4        1                                    |      2  2.5|
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      2  4.0|
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Cystic                  |    3                 4                                         1         |      4  3.0|
                                            __________________________________________________________________________|____________|
   Vagina                                  |                +                                                         |   1        |
      Cyst                                 |                3                                                         |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  23                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 4| 5| 6| 7| 7| 7| 5| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 6|            |
                             DAY ON TEST   | 2| 2| 2| 1| 5| 5| 1| 2| 2| 2| 0| 4| 2| 2| 2| 2| 2| 2| 2| 2| 9| 2| 0| 9| 9|            |
                                           | 4| 3| 4| 8| 6| 0| 0| 4| 2| 2| 1| 4| 2| 3| 3| 3| 2| 4| 4| 2| 5| 3| 9| 3| 6|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |             4                 4  3                             3  3      |      7  3.6|
      Myelofibrosis                        |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |                                           +  +              +            |   8        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ectasia                              |                                                                          |      1  3.0|
      Inflammation, Chronic Active         |                                                                4         |      1  4.0|
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ectasia                              |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Fibrosis                             |                                                             2            |      1  2.0|
      Hematopoietic Cell Proliferation     |             3                                                            |      1  3.0|
      Hemorrhage                           |                                                                          |      1  4.0|
      Necrosis                             |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Cystic                  | 1  1  2  2  2  3  1  2  2     2  1  2  2     2  2  2  2  2  2  2     2  3|     43  1.9|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperkeratosis                       |                                                 4                        |      1  4.0|
      Inflammation, Chronic Active         |                                                 2                        |      2  3.0|
      Ulcer                                |                                                                          |      1  4.0|
      Epidermis, Hyperplasia               |                                                 2                        |      2  2.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                   3                                                  3  3|      3  3.0|
      Hydrocephalus                        |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         | 1                                                                        |      1  1.0|
      Alveolar Epithelium, Hyperplasia     |    2                    2           1                       1            |      6  1.8|
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      | 1  1  1  1  1  1  1  1  1  1  1     1  1  1     1  1  1  1  2  1  1  1  1|     45  1.1|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  24                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 4| 5| 6| 7| 7| 7| 5| 6| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 6|            |
                             DAY ON TEST   | 2| 2| 2| 1| 5| 5| 1| 2| 2| 2| 0| 4| 2| 2| 2| 2| 2| 2| 2| 2| 9| 2| 0| 9| 9|            |
                                           | 4| 3| 4| 8| 6| 0| 0| 4| 2| 2| 1| 4| 2| 3| 3| 3| 2| 4| 4| 2| 5| 3| 9| 3| 6|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
      Artery, Vein, Mineralization         | 1     1  1  1  1  1  1  1  1  1  1  1  1        1     1  1     1  1  1   |     38  1.0|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                                     1                                    |      3  1.3|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                     2                    2               |      4  2.3|
      Nasolacrimal Duct, Inflammation,     |                                                                          |            |
           Suppurative                     |                                           2                              |      3  1.7|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                    +  +                  |   2        |
      Inflammation, Chronic Active         |                                                    3                     |      1  3.0|
      Lens, Cataract                       |                                                       4                  |      1  4.0|
      Retina, Degeneration                 |                                                    4  4                  |      2  4.0|
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |                                                    +                     |   1        |
      Inflammation, Chronic Active         |                                                    3                     |      1  3.0|
                                            __________________________________________________________________________|____________|
   Zymbal's Gland                          |                                           +                              |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |             1  1              1                                          |      5  1.0|
      Nephropathy, Chronic                 | 2  1  2  1        1  2  2  2  1  2  2  2     2  2  2  2  2  2  1  2  2  2|     44  1.7|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  25                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 4| 6| 5| 7| 5| 7| 7| 7| 4| 6| 5| 7| 6| 6| 7| 5| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 2| 2| 2| 2| 3| 7| 6| 2| 4| 2| 2| 2| 9| 2| 5| 0| 7| 8| 0| 9| 2| 0| 2| 2| 2|             
                                           | 3| 3| 3| 4| 3| 5| 1| 4| 8| 3| 4| 2| 1| 6| 0| 8| 4| 2| 8| 0| 4| 5| 2| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |                                                                X         |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Angiectasis                          |                            3                                             |             
      Basophilic Focus                     |                                                                X  X      |             
      Eosinophilic Focus                   | X        X           X        X                       X     X        X  X|             
      Hepatodiaphragmatic Nodule           |                                     X              X                     |             
      Inflammation, Chronic                | 2  2  1        1     2  2  2  2  2  1        1  3  3        2  2  2  1  2|             
      Mixed Cell Focus                     |    X           X     X                                      X            |             
      Pigmentation, Hemosiderin            |                         2  1  1     1        2  3  2  1           1  2   |             
      Bile Duct, Hyperplasia               | 2  1  2        1           2  2  1  1  2  3           3  3  1     1  2  1|             
      Hepatocyte, Degeneration, Cystic     |                                                                          |             
      Hepatocyte, Necrosis                 | 2                                                           2            |             
      Hepatocyte, Vacuolization Cytoplasmic| 2  2  2  3     2     2  1  2  3  2  1  2     2  2     3     3  2  1  3  2|             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Degeneration                     |                   3                                                      |             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      | 3  3  3        3  2  3     3  3  3           3  4  3        3  3  3  3  3|             
      Portal Vein, Thrombosis              |                                           4                              |             
                                            __________________________________________________________________________|             
   Mesentery                               |       +                                +  +                              |             
      Fat, Necrosis                        |       4                                4                                 |             
                                            __________________________________________________________________________|             
   Oral Mucosa                             |             +                                         +                  |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Acinus, Atrophy                      | 1                    1           1     2                    2  1         |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Hyperplasia              |                                     2  3                                 |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                                        4                                 |             
      Epithelium, Ulcer                    |                                        4                                 |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Erosion                  |                                                                          |             
      Epithelium, Ulcer                    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                  3                                       |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  26                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 4| 6| 5| 7| 5| 7| 7| 7| 4| 6| 5| 7| 6| 6| 7| 5| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 2| 2| 2| 2| 3| 7| 6| 2| 4| 2| 2| 2| 9| 2| 5| 0| 7| 8| 0| 9| 2| 0| 2| 2| 2|             
                                           | 3| 3| 3| 4| 3| 5| 1| 4| 8| 3| 4| 2| 1| 6| 0| 8| 4| 2| 8| 0| 4| 5| 2| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              |    1     1           2  1  1  1                       2                 2|             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Fatty                  |                            2           1                 1        2      |             
      Hyperplasia                          | 2                    1     2                                             |             
      Hypertrophy                          |                            2                                             |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                               1                          1           1  1|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  +  +  +  +  +  +  +  +  +  M  M  +  +  +  M  +  +  +  +  +  +  +  M|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  |    2  2  4        2  2     2              2     4        1  2  3  1     2|             
      Pars Distalis, Hyperplasia           |    3     2     3  2  3     2  2        2  3                 2  3  1      |             
      Pars Intermedia, Cyst                |                                                          2               |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  | 1        1        2  1                                3                  |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
      Hyperplasia                          |       2  2           2                                               2  2|             
      Inflammation, Chronic Active         |                2                                                         |             
                                            __________________________________________________________________________|             
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                         3                                                |             
      Cyst                                 |                                                                          |             
      Inflammation, Chronic Active         |    3                                                                     |             
                                            __________________________________________________________________________|             
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Cystic                  |    1                                         2                           |             
                                            __________________________________________________________________________|             
   Vagina                                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |             3     4                       4                    4  3      |             
      Myelofibrosis                        |                                           2                              |             
                                            __________________________________________________________________________|             
   Lymph Node                              |          +                             +              +              +   |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |                2                          3                              |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  27                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 4| 6| 5| 7| 5| 7| 7| 7| 4| 6| 5| 7| 6| 6| 7| 5| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 2| 2| 2| 2| 3| 7| 6| 2| 4| 2| 2| 2| 9| 2| 5| 0| 7| 8| 0| 9| 2| 0| 2| 2| 2|             
                                           | 3| 3| 3| 4| 3| 5| 1| 4| 8| 3| 4| 2| 1| 6| 0| 8| 4| 2| 8| 0| 4| 5| 2| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Hematopoietic Cell Proliferation     |                   3                                            3         |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                      4                                                   |             
      Hyperplasia, Cystic                  | 1  2  1     1  2  2  2  4  1     2  2  2  2     4  2  2  2     2     2  2|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Subcutaneous Tissue, Hemorrhage,     |                                                                          |             
           Acute                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Osteopetrosis                        |                                                                          |             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                                                          |             
      Hemorrhage, Acute                    |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                                          |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
      Hemorrhage                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                     2                                1   |             
      Alveolar Epithelium, Hyperplasia     | 1     2                                                                  |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      | 2  1  1  1  1  2  1  1  1  2  1  1  1  1  1  1  1  1  1  1  1  1  2  1  2|             
      Artery, Vein, Mineralization         | 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1     1  1     1  1  1  1  1|             
      Interstitium, Inflammation, Chronic  |                                                                          |             
          Active                           |                                                                1         |             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |                                                                2        2|             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                    2                 2   |             
      Inflammation, Suppurative            |             3                                                            |             
      Nasolacrimal Duct, Inflammation,     |                                                                          |             
           Suppurative                     |                   2                                                      |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |    +                                                                     |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  28                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 7| 7| 7| 7| 4| 6| 5| 7| 5| 7| 7| 7| 4| 6| 5| 7| 6| 6| 7| 5| 7| 6| 7| 7| 7|             
                             DAY ON TEST   | 2| 2| 2| 2| 3| 7| 6| 2| 4| 2| 2| 2| 9| 2| 5| 0| 7| 8| 0| 9| 2| 0| 2| 2| 2|             
                                           | 3| 3| 3| 4| 3| 5| 1| 4| 8| 3| 4| 2| 1| 6| 0| 8| 4| 2| 8| 0| 4| 5| 2| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
      Anterior Chamber, Inflammation,      |                                                                          |             
          Suppurative                      |    3                                                                     |             
      Lens, Cataract                       |                                                                          |             
      Retina, Degeneration                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
      Hydronephrosis                       |                                           2                              |             
      Mineralization                       |             1     1     1           1              1           1         |             
      Nephropathy, Chronic                 | 2  2  2     1  2  1  2  2  1  2  2  2  2  1  1  2  2  2  1  2  1  2     2|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  29                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 4| 7|            |
                             DAY ON TEST   | 2| 2| 9| 2| 7| 2| 1| 2| 0| 2| 7| 2| 2| 2| 2| 0| 4| 2| 2| 2| 2| 0| 2| 8| 2|            |
                                           | 3| 4| 6| 3| 7| 3| 8| 4| 2| 4| 4| 3| 4| 3| 3| 2| 3| 4| 3| 4| 3| 5| 3| 9| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Parasite Metazoan                    |                         X        X                                       |      3     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic Active         |                                                                   3      |      1  3.0|
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Angiectasis                          |                                              2              2            |      3  2.3|
      Basophilic Focus                     |    X  X                          X  X              X     X        X  X   |     10     |
      Eosinophilic Focus                   | X  X     X           X           X           X        X  X        X  X   |     18     |
      Hepatodiaphragmatic Nodule           |    X                                   X                             X   |      5     |
      Inflammation, Chronic                | 1  2     2           2  2  2     3  2  2  2  2  1  2        2     2     2|     34  1.9|
      Mixed Cell Focus                     |    X                                X                                    |      6     |
      Pigmentation, Hemosiderin            | 1                 2  2  1           2                 2           1  1  1|     19  1.5|
      Bile Duct, Hyperplasia               | 1        1           2     1  1  3  1  1  1  2  1  2  3  3     2  2     1|     33  1.7|
      Hepatocyte, Degeneration, Cystic     | 1                                                                        |      1  1.0|
      Hepatocyte, Necrosis                 |       2                          1                                       |      4  1.8|
      Hepatocyte, Vacuolization Cytoplasmic| 2  2  1  2  2     3  2  1  3  3  3  2  2  2  3  2  2  2  2  1  3  2  1  1|     44  2.1|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Degeneration                     |                                                                          |      1  3.0|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      | 3  3  3  3           3  3  3     3  3  3  3        3  3  3  3     3  2  3|     35  3.0|
      Portal Vein, Thrombosis              |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Mesentery                               | +              +  +                          +                           |   7        |
      Fat, Necrosis                        | 4              4  4                          4                           |      6  4.0|
                                            __________________________________________________________________________|____________|
   Oral Mucosa                             |                                                                          |   2        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Acinus, Atrophy                      |    2                       1     1                    1     1            |     11  1.3|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Epithelium, Hyperplasia              |          2                                                     2         |      4  2.3|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                                                2         |      2  3.0|
      Epithelium, Ulcer                    |                                                                2         |      2  3.0|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Epithelium, Erosion                  |                   4                                                      |      1  4.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  30                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 4| 7|            |
                             DAY ON TEST   | 2| 2| 9| 2| 7| 2| 1| 2| 0| 2| 7| 2| 2| 2| 2| 0| 4| 2| 2| 2| 2| 0| 2| 8| 2|            |
                                           | 3| 4| 6| 3| 7| 3| 8| 4| 2| 4| 4| 3| 4| 3| 3| 2| 3| 4| 3| 4| 3| 5| 3| 9| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
      Epithelium, Ulcer                    |                                                                4         |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy, Chronic              | 2  2     2     2  2     2        2     2  1        1  2           1     1|     21  1.6|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Fatty                  |                                     2  1                                 |      6  1.5|
      Hyperplasia                          |       2           1  1                 1                                1|      8  1.4|
      Hypertrophy                          |                      2              4                                    |      3  2.7|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |       1                          1                       2               |      7  1.1|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  M  +  +  +  +  +  +  +  +  M  +  +  M  +  +  +  M  +  M  M  +  +  +|  39        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Pars Distalis, Cyst                  |    2     2  1        2              2  1  3     2  2  2  1  3  3  1     1|     28  2.0|
      Pars Distalis, Hyperplasia           | 2     3  2           2     2                 3  3              3  2      |     21  2.4|
      Pars Intermedia, Cyst                |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      C-Cell, Hyperplasia                  |                                                                          |      5  1.6|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                3     3                                                   |      2  3.0|
      Hyperplasia                          |                               2     2     2        3  3                  |     10  2.2|
      Inflammation, Chronic Active         |          1                       2                                       |      3  1.7|
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Atrophy                              |                                                                          |      1  3.0|
      Cyst                                 |                                                             2            |      1  2.0|
      Inflammation, Chronic Active         |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia, Cystic                  |                                                             3            |      3  2.0|
                                            __________________________________________________________________________|____________|
   Vagina                                  |       +                                                           +      |   2        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  31                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 4| 7|            |
                             DAY ON TEST   | 2| 2| 9| 2| 7| 2| 1| 2| 0| 2| 7| 2| 2| 2| 2| 0| 4| 2| 2| 2| 2| 0| 2| 8| 2|            |
                                           | 3| 4| 6| 3| 7| 3| 8| 4| 2| 4| 4| 3| 4| 3| 3| 2| 3| 4| 3| 4| 3| 5| 3| 9| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                   2  3   |      7  3.3|
      Myelofibrosis                        |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |       +        +  +           +  +                    +  +     +         |  12        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Ectasia                              | 2                                                                        |      3  2.3|
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hematopoietic Cell Proliferation     |                                                                          |      2  3.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  M  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  4.0|
      Hyperplasia, Cystic                  | 2  2     2  1     2  2  2  2     2        2  2     2  2  2  2  2  2      |     37  2.0|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Subcutaneous Tissue, Hemorrhage,     |                                                                          |            |
           Acute                           |                                                                4         |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Osteopetrosis                        |                               1                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                               +                                +         |   2        |
      Hemorrhage, Acute                    |                                                                3         |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |             3                                                            |      1  3.0|
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |             +                                                            |   1        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |             +                                                  +         |   2        |
      Hemorrhage                           |             3                                                            |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                             1            |      3  1.3|
      Alveolar Epithelium, Hyperplasia     |                                                                          |      2  1.5|
      Alveolus, Infiltration Cellular,     |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  32                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 4| 7|            |
                             DAY ON TEST   | 2| 2| 9| 2| 7| 2| 1| 2| 0| 2| 7| 2| 2| 2| 2| 0| 4| 2| 2| 2| 2| 0| 2| 8| 2|            |
                                           | 3| 4| 6| 3| 7| 3| 8| 4| 2| 4| 4| 3| 4| 3| 3| 2| 3| 4| 3| 4| 3| 5| 3| 9| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
           Histiocyte                      | 2  2  1  2     2  1  1  2  1     2  2  2     1  1  1  2  1  1     2  1  1|     46  1.3|
      Artery, Vein, Mineralization         | 1  1  1  1     2  1     1     1     1  1  1  1  1  1  1  1  1  1  1  1  1|     44  1.0|
      Interstitium, Inflammation, Chronic  |                                                                          |            |
          Active                           |                                                                          |      1  1.0|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      | 1  1                                               1                     |      5  1.4|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                   2                       2                             2|      5  2.0|
      Inflammation, Suppurative            |                                                                          |      1  3.0|
      Nasolacrimal Duct, Inflammation,     |                                                                          |            |
           Suppurative                     |                   2                                      2  2            |      4  2.0|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     | +                                                                        |   2        |
      Anterior Chamber, Inflammation,      |                                                                          |            |
          Suppurative                      |                                                                          |      1  3.0|
      Lens, Cataract                       | 4                                                                        |      1  4.0|
      Retina, Degeneration                 | 4                                                                        |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                          4               |      1  4.0|
      Hydronephrosis                       |                                                                          |      1  2.0|
      Mineralization                       |                                                 1                    1   |      8  1.0|
      Nephropathy, Chronic                 | 2  2  1     1     2  2  1  2  1  2  2  2  2  1     2  2  2  2     2     2|     43  1.7|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  33                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 6| 6| 5| 6| 5| 7| 5| 5| 5| 7| 4| 2| 6| 6| 5| 6| 7| 5| 7| 5| 7| 5| 7|             
                             DAY ON TEST   | 6| 2| 9| 2| 0| 9| 8| 2| 8| 6| 6| 2| 6| 8| 4| 6| 0| 9| 0| 7| 2| 9| 2| 7| 2|             
                                           | 7| 3| 2| 7| 9| 8| 3| 3| 5| 8| 0| 3| 3| 1| 1| 2| 5| 7| 4| 5| 3| 1| 3| 4| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |             X                                         X                  |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |    X  X              X           X  X                       X     X      |             
      Eosinophilic Focus                   |    X                                                                     |             
      Hepatodiaphragmatic Nodule           |                X                                                  X      |             
      Inflammation, Chronic                |    1  1     1        2           1     1           1        1     2      |             
      Pigmentation, Hemosiderin            |                1  1  1  1                 2  1     1  1        1        1|             
      Bile Duct, Hyperplasia               | 3  2  2  3  2  2  3  2  2  3  1  2  2  1  3  3  3  2  3     2  2  2  2  3|             
      Hepatocyte, Degeneration, Cystic     |       2     1  1        2  2                                1     1      |             
      Hepatocyte, Necrosis                 |                            2              2           2  3           2   |             
      Hepatocyte, Vacuolization Cytoplasmic|       2  2  2           1     2     1  1     2     2     2  2  3     2   |             
      Portal Vein, Thrombosis              |                                                                          |             
                                            __________________________________________________________________________|             
   Mesentery                               | +              +              +                    +     +     +  +  +  +|             
      Fat, Necrosis                        |                4                                   4           4     4   |             
      Fat, Pigmentation, Hemosiderin       |                                                                         4|             
                                            __________________________________________________________________________|             
   Oral Mucosa                             |                                     +                                    |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Acinus, Atrophy                      |    1     1  1  1     2     1  1  3  1           3  1                 2  3|             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Hyperplasia              |       2                       2                                          |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                               2                                          |             
      Epithelium, Ulcer                    |                               4                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Epithelium, Erosion                  |                            2                                             |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                               2              2                           |             
      Epithelium, Ulcer                    |                         4     4              4           4               |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |    3                                                                     |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              | 2  2  2  2  2     2  2           2  2  2  2  2     2  2  1  3  2  2  2   |             
      Pigmentation, Hemosiderin            |                                        1                                 |             
      Atrium, Thrombosis                   |       4                                                                  |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  34                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 6| 6| 5| 6| 5| 7| 5| 5| 5| 7| 4| 2| 6| 6| 5| 6| 7| 5| 7| 5| 7| 5| 7|             
                             DAY ON TEST   | 6| 2| 9| 2| 0| 9| 8| 2| 8| 6| 6| 2| 6| 8| 4| 6| 0| 9| 0| 7| 2| 9| 2| 7| 2|             
                                           | 7| 3| 2| 7| 9| 8| 3| 3| 5| 8| 0| 3| 3| 1| 1| 2| 5| 7| 4| 5| 3| 1| 3| 4| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Fatty                  |          2     1  2  2  3                 1  2     2  1     2           1|             
      Hyperplasia                          |                      1  2                 2  2     2  1     2     1     1|             
      Hypertrophy                          |                      2                          1                        |             
      Inflammation, Chronic Active         |                      2                                                   |             
      Thrombosis                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |          3     1     1  1  2                       1           2         |             
      Necrosis                             |                                                                      4   |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  M  +  +  +|             
      Hyperplasia                          |                                                             2     2      |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +|             
      Pars Distalis, Cyst                  |                                                                          |             
      Pars Distalis, Hyperplasia           | 2        2     2        2     2  2  2           2                        |             
      Pars Intermedia, Cyst                |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  |                      2  1     1                                          |             
      Follicle, Cyst                       |                               2                                          |             
      Follicular Cell, Hyperplasia, Cystic |                                                                          |             
      Follicular Cell, Hyperplasia         |             1                                                            |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Coagulating Gland                       |                                           +                              |             
      Inflammation, Chronic Active         |                                           4                              |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 | 3                                                     4                  |             
      Hyperplasia                          |       2              2              2                                    |             
      Inflammation, Chronic Active         |    2  2  2  1  2  1  2  2  2  2  2  3  1  2  2  2  2  3  2  2     2     2|             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |    2     2  1  1  2  2  1  2        2  1  4        3  2  2  2  2  1  3   |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Germinal Epithelium, Degeneration    |                                                                          |             
      Interstitial Cell, Hyperplasia       | 1                 1     1                       2              1         |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  35                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 6| 6| 5| 6| 5| 7| 5| 5| 5| 7| 4| 2| 6| 6| 5| 6| 7| 5| 7| 5| 7| 5| 7|             
                             DAY ON TEST   | 6| 2| 9| 2| 0| 9| 8| 2| 8| 6| 6| 2| 6| 8| 4| 6| 0| 9| 0| 7| 2| 9| 2| 7| 2|             
                                           | 7| 3| 2| 7| 9| 8| 3| 3| 5| 8| 0| 3| 3| 1| 1| 2| 5| 7| 4| 5| 3| 1| 3| 4| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |             
                                           |                                                                          |             
      Atrophy                              |                                                                         3|             
      Hyperplasia                          | 4  3  3  4     4  3  3  4  4  4  3  3     3  4  4     3        3  3      |             
      Myelofibrosis                        |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +     +  +        +     +  +  +              +  +     +        +     +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |                                     3                                    |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Congestion                           |                                                                          |             
      Fibrosis                             |    3  2                             1                 3           3      |             
      Hyperplasia, Lymphoid                |                                                       3                  |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                    3                     |             
      Hyperplasia, Cystic                  | 1        2     2  2     2  1              2        3  4  1  3  2        2|             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                        3                                 |             
      Epidermis, Hyperplasia               |                                        1                                 |             
      Sebaceous Gland, Hyperplasia         |                                                          3               |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Skeletal Muscle                         |                                              +                           |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                3        3  3                                             |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                                                          |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                                                          |             
      Demyelination                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
      Metaplasia, Osseous                  |                                                       1                  |             
      Alveolar Epithelium, Hyperplasia     |       2     2                                         2           2      |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      |          1     1           1  1  1  1                 1                 1|             
      Artery, Vein, Mineralization         | 1  1  1  1     1     1  1  1  1  1  1  1        1  1  1  1  1  1  1  1  1|             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |                                        2                                 |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  36                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 6| 6| 5| 6| 5| 7| 5| 5| 5| 7| 4| 2| 6| 6| 5| 6| 7| 5| 7| 5| 7| 5| 7|             
                             DAY ON TEST   | 6| 2| 9| 2| 0| 9| 8| 2| 8| 6| 6| 2| 6| 8| 4| 6| 0| 9| 0| 7| 2| 9| 2| 7| 2|             
                                           | 7| 3| 2| 7| 9| 8| 3| 3| 5| 8| 0| 3| 3| 1| 1| 2| 5| 7| 4| 5| 3| 1| 3| 4| 3|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.0%                                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM - cont                 |                                                                          |             
                                           |                                                                          |             
      Inflammation, Chronic Active         |    2     2                 2                                             |             
      Inflammation, Suppurative            |                         3                                2               |             
      Arteriole, Venule, Thrombosis        |                   3                                                      |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |          3     3                                                         |             
      Infarct                              |                         2                                                |             
      Nephropathy, Chronic                 | 2  2  2  2  2  2  3  2  2  2  2  2  2  1  2  2  2  3  3  2  3  2  3  2  2|             
      Papilla, Hyperplasia, Atypical       |                                                                          |             
      Renal Tubule, Hyperplasia            |                                                                         1|             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                            3                                             |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  37                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 7| 6| 6| 6| 5| 7| 6| 6| 6| 7| 7| 7| 6| 4| 3| 7| 6| 7| 6| 7| 6|            |
                             DAY ON TEST   | 2| 2| 2| 4| 1| 7| 1| 7| 2| 2| 6| 6| 5| 1| 1| 2| 4| 5| 0| 1| 8| 2| 5| 2| 5|            |
                                           | 3| 3| 3| 5| 0| 6| 9| 4| 6| 3| 9| 9| 5| 0| 5| 3| 6| 7| 5| 9| 3| 3| 5| 3| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Parasite Metazoan                    |       X                                                                  |      3     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     |    X  X                 X  X        X        X                 X         |     14     |
      Eosinophilic Focus                   |                                                                          |      1     |
      Hepatodiaphragmatic Nodule           |                                                       X                  |      3     |
      Inflammation, Chronic                | 2  1                    1                    2  1  1  2           2  1   |     18  1.3|
      Pigmentation, Hemosiderin            |       1     2                 2        2  1  1        1  2           1   |     19  1.3|
      Bile Duct, Hyperplasia               | 2  2  3  3  3  3  3  3  1  2  3  3  1  3  2  1  2        3  3  2  2  2  2|     47  2.3|
      Hepatocyte, Degeneration, Cystic     |       4     1  2           2           2        1        3  1  1         |     16  1.7|
      Hepatocyte, Necrosis                 |             3              1     1                    2     1            |     10  1.9|
      Hepatocyte, Vacuolization Cytoplasmic| 1  1     2           1                 2  2  1     2  1  1  2  1     1   |     26  1.6|
      Portal Vein, Thrombosis              |             4                                                            |      1  4.0|
                                            __________________________________________________________________________|____________|
   Mesentery                               |             +              +                                             |  11        |
      Fat, Necrosis                        |             4              4                                             |      6  4.0|
      Fat, Pigmentation, Hemosiderin       |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Oral Mucosa                             |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Acinus, Atrophy                      |    1  2                    2  2  2  1     1              1  2  1  1  2   |     25  1.6|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Epithelium, Hyperplasia              |             2                                      2                     |      4  2.0|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                                    3                     |      2  2.5|
      Epithelium, Ulcer                    |                                                    4                     |      2  4.0|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Epithelium, Erosion                  |                                           2                              |      2  2.0|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                                                          |      2  2.0|
      Epithelium, Ulcer                    |                                                                          |      4  4.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  38                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 7| 6| 6| 6| 5| 7| 6| 6| 6| 7| 7| 7| 6| 4| 3| 7| 6| 7| 6| 7| 6|            |
                             DAY ON TEST   | 2| 2| 2| 4| 1| 7| 1| 7| 2| 2| 6| 6| 5| 1| 1| 2| 4| 5| 0| 1| 8| 2| 5| 2| 5|            |
                                           | 3| 3| 3| 5| 0| 6| 9| 4| 6| 3| 9| 9| 5| 0| 5| 3| 6| 7| 5| 9| 3| 3| 5| 3| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 CARDIOVASCULAR SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
      Inflammation, Chronic Active         |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy, Chronic              | 2  1  2     2  2  2  1  2  2  2  2  2  3  2  2  2     2  2  2  2  2  2  2|     42  2.0|
      Pigmentation, Hemosiderin            |                                                                          |      1  1.0|
      Atrium, Thrombosis                   |                            4                                             |      2  4.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Fatty                  | 1  1     2  2     1  2  1     2        1  2  1           1  1        1  1|     26  1.5|
      Hyperplasia                          | 1  2                    1                 2  2              2  1     1   |     17  1.5|
      Hypertrophy                          |                                  2                                       |      3  1.7|
      Inflammation, Chronic Active         |                                                                          |      1  2.0|
      Thrombosis                           |                                        2                                 |      1  2.0|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |    2        1  3        1  2  2  2     2        1        1  1           2|     19  1.6|
      Necrosis                             |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  M  M  +  +  +  +  +|  45        |
      Hyperplasia                          |                                                                          |      2  2.0|
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Pars Distalis, Cyst                  |                                     2                                    |      1  2.0|
      Pars Distalis, Hyperplasia           |       2  2           1  2  2              2                 2     3  2   |     17  2.0|
      Pars Intermedia, Cyst                |                                  2                                       |      1  2.0|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      C-Cell, Hyperplasia                  |       2  2     1        2  2     1                          2  2         |     11  1.6|
      Follicle, Cyst                       |                                                                          |      1  2.0|
      Follicular Cell, Hyperplasia, Cystic | 2                                                                        |      1  2.0|
      Follicular Cell, Hyperplasia         |                                                                          |      1  1.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Coagulating Gland                       |                                           +                              |   2        |
      Inflammation, Chronic Active         |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      2  3.5|
      Hyperplasia                          | 2                          3                                             |      5  2.2|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  39                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 7| 6| 6| 6| 5| 7| 6| 6| 6| 7| 7| 7| 6| 4| 3| 7| 6| 7| 6| 7| 6|            |
                             DAY ON TEST   | 2| 2| 2| 4| 1| 7| 1| 7| 2| 2| 6| 6| 5| 1| 1| 2| 4| 5| 0| 1| 8| 2| 5| 2| 5|            |
                                           | 3| 3| 3| 5| 0| 6| 9| 4| 6| 3| 9| 9| 5| 0| 5| 3| 6| 7| 5| 9| 3| 3| 5| 3| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
      Inflammation, Chronic Active         | 3  3  2  2  2  1  2  2  2  3  2  1  1  2  2  2  1  1  1  1  2  2  2  1  2|     47  1.9|
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         | 3  1  1  2     1  2  2  1  1  2        2        2  3  2  2  1  1  2  2   |     37  1.8|
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Germinal Epithelium, Degeneration    | 4                                      4                                 |      2  4.0|
      Interstitial Cell, Hyperplasia       |    1     1        1                                1  1  1               |     11  1.1|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      1  3.0|
      Hyperplasia                          |       4  4  4  3  4  4  4  4  3  4  4  4  4  3           3  4  4  3  3  4|     38  3.6|
      Myelofibrosis                        |                            2                                2            |      2  2.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |          +  +  +  +  +        +  +     +  +              +  +            |  24        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ectasia                              |                                                                      2   |      2  2.5|
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Congestion                           |                            3                                             |      1  3.0|
      Fibrosis                             |             1              2           2                             1   |      9  2.0|
      Hyperplasia, Lymphoid                |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M|  48        |
      Cyst                                 |                                                                          |      1  3.0|
      Hyperplasia, Cystic                  | 2        2  2     2  2  1     2  1     2  2     2  2     3  2        2   |     28  2.0|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                         3                                                |      2  3.0|
      Epidermis, Hyperplasia               |                                                                          |      1  1.0|
      Sebaceous Gland, Hyperplasia         |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                           2                              |      4  2.8|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  40                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 6| 7| 6| 6| 6| 5| 7| 6| 6| 6| 7| 7| 7| 6| 4| 3| 7| 6| 7| 6| 7| 6|            |
                             DAY ON TEST   | 2| 2| 2| 4| 1| 7| 1| 7| 2| 2| 6| 6| 5| 1| 1| 2| 4| 5| 0| 1| 8| 2| 5| 2| 5|            |
                                           | 3| 3| 3| 5| 0| 6| 9| 4| 6| 3| 9| 9| 5| 0| 5| 3| 6| 7| 5| 9| 3| 3| 5| 3| 2|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      A     |
    0.0%                                   | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 NERVOUS SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                       +                  |   1        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |                                                       +                  |   1        |
      Demyelination                        |                                                       1                  |      1  1.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         | 2                                                                 2      |      2  2.0|
      Metaplasia, Osseous                  |                                                                          |      1  1.0|
      Alveolar Epithelium, Hyperplasia     | 2     2                                                                  |      6  2.0|
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      |    1  1                             1     1  1     1     1        1  1  1|     18  1.0|
      Artery, Vein, Mineralization         | 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1|     46  1.0|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |       2                 3              3                 3  2            |      8  2.4|
      Inflammation, Suppurative            |                2  2                 3                             2      |      6  2.3|
      Arteriole, Venule, Thrombosis        |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      2  3.0|
      Infarct                              |                                                                          |      1  2.0|
      Nephropathy, Chronic                 | 2  2  2  2  2  2  3  2  2  3  2  2  2  3  3  3  3  2  2  3  2     2  2  2|     49  2.2|
      Papilla, Hyperplasia, Atypical       |                            2                                             |      1  2.0|
      Renal Tubule, Hyperplasia            |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                                                          |      1  3.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  41                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 7| 7| 6| 5| 6| 6| 5| 5| 6| 7| 6| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                             DAY ON TEST   | 6| 2| 2| 1| 6| 0| 4| 4| 7| 6| 3| 0| 1| 2| 8| 1| 5| 9| 4| 9| 6| 6| 3| 0| 7|             
                                           | 9| 3| 3| 2| 9| 2| 1| 1| 9| 2| 4| 9| 9| 3| 3| 0| 2| 4| 2| 7| 1| 9| 5| 9| 0|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                                                             2            |             
      Parasite Metazoan                    |                            X                                             |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                                                             2            |             
      Parasite Metazoan                    |                   X                                                      |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Erosion                              |                                                                          |             
      Inflammation, Suppurative            |                                                                          |             
      Mineralization                       |                                                             2            |             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |    X  X                    X           X                                 |             
      Eosinophilic Focus                   |          X        X                                      X               |             
      Hepatodiaphragmatic Nodule           |                               X                                          |             
      Inflammation, Chronic                |    1  2  1                 1           1     1     1  1                  |             
      Mixed Cell Focus                     |       X                                                                  |             
      Pigmentation, Hemosiderin            |          1                 1     2     1  2              2        1  2   |             
      Bile Duct, Hyperplasia               | 3  1  2  2  2  3  3  3  3  1  3  3  3  2  2  3  2  1  2  2  2  1  2  2  2|             
      Hepatocyte, Degeneration, Cystic     | 3     2  2  1     2     1     1  2     1           2  1  2  1  1     3  1|             
      Hepatocyte, Necrosis                 |                         2           1     2     2           3     1      |             
      Hepatocyte, Vacuolization Cytoplasmic|       1  2                 2  1        1  3        1  1  1        2  3  2|             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Degeneration                     |                                                                          |             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      |    1  2                    1           2           1  1                 1|             
                                            __________________________________________________________________________|             
   Mesentery                               |       +              +                                                   |             
      Fat, Necrosis                        |       4              4                                                   |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                1                                                         |             
      Acinus, Atrophy                      |    1                    2           2  2     2                    2      |             
      Artery, Inflammation, Chronic Active |                                                                          |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                                                             3           3|             
      Perforation                          |                                                          X               |             
      Epithelium, Hyperplasia              |                2                          2        2     2           2   |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                                           2        4     4           3   |             
      Epithelium, Ulcer                    |                                           4        4                 4   |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  42                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 7| 7| 6| 5| 6| 6| 5| 5| 6| 7| 6| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                             DAY ON TEST   | 6| 2| 2| 1| 6| 0| 4| 4| 7| 6| 3| 0| 1| 2| 8| 1| 5| 9| 4| 9| 6| 6| 3| 0| 7|             
                                           | 9| 3| 3| 2| 9| 2| 1| 1| 9| 2| 4| 9| 9| 3| 3| 0| 2| 4| 2| 7| 1| 9| 5| 9| 0|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
      Mineralization                       |                                                             3  2        2|             
      Epithelium, Erosion                  |                                  3                                       |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                         1                                                |             
      Epithelium, Necrosis                 |                                                                      3   |             
      Epithelium, Ulcer                    |                         3                                                |             
                                            __________________________________________________________________________|             
   Tooth                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Aorta, Mineralization                |                                                             3  2        4|             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              | 2  2  2  2  2  1  2  2  2     3  2  2  2  2  2  3  2  2  2  3  3  2  3  3|             
      Mineralization                       |          1                                                  3           2|             
      Atrium, Thrombosis                   |                                                                   2  2   |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |                                                                         2|             
      Degeneration, Fatty                  |          2        1              1     1        2  2        2  2  2  2   |             
      Hyperplasia                          |                                                          1     2         |             
      Hypertrophy                          |          2                                                               |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                                      4   |             
      Hyperplasia                          |    3  1  1     2              2  2        2                       2     2|             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  M  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |          4                                      2  2     2  4  4        3|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  | 1        3                             1              1           2      |             
      Pars Distalis, Hyperplasia           | 2     1  3  2  2        2  3  2                    2  2                  |             
      Pars Intermedia, Cyst                |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  | 1                                1                                1      |             
      Follicle, Cyst                       |                                           3                          2   |             
      Follicular Cell, Hyperplasia, Cystic |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Peritoneum                              |                                                                          |             
                                            __________________________________________________________________________|             
   Tissue NOS                              |                         +                                                |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Coagulating Gland                       |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  43                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 7| 7| 6| 5| 6| 6| 5| 5| 6| 7| 6| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                             DAY ON TEST   | 6| 2| 2| 1| 6| 0| 4| 4| 7| 6| 3| 0| 1| 2| 8| 1| 5| 9| 4| 9| 6| 6| 3| 0| 7|             
                                           | 9| 3| 3| 2| 9| 2| 1| 1| 9| 2| 4| 9| 9| 3| 3| 0| 2| 4| 2| 7| 1| 9| 5| 9| 0|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Granuloma Sperm                      |                      4                                   2               |             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                         2                                                |             
      Hyperplasia                          |                               3  4        4                    2  2      |             
      Inflammation, Chronic Active         | 2  2  2  2  2  2  2  2  2  1  2  3     2  2  3  2  2  2  2  2  2  4  2  2|             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         | 1     2     3     1  3     2           1  1  1  3  2  2     1  4  2  1  2|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                                                                          |             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Germinal Epithelium, Degeneration    |                3                                                         |             
      Interstitial Cell, Hyperplasia       |             2  1        1                       2              1  1      |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Hyperplasia                          | 4  3  3  2  4  4  4  4  3     4  4  4  3  3     3     4  4     4  4      |             
      Inflammation, Suppurative            |                      2                                                   |             
      Myelofibrosis                        |                               2                                          |             
                                            __________________________________________________________________________|             
   Lymph Node                              | +           +  +        +     +  +  +     +  +  +        +        +  +   |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |             2                                         3                  |             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |                                                                3         |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosis                             |       3     2                 2        2              4           3     4|             
      Hematopoietic Cell Proliferation     |                                                                          |             
      Metaplasia, Lipocyte                 |       4                                                                  |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  M  +  +  +  M|             
      Cyst                                 |             2                                         2                  |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                 3                        |             
      Hyperplasia, Cystic                  | 2        2  2     2  2        1  2     1  2     3        2     3  1  2   |             
      Mineralization                       |                                                             2            |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperkeratosis                       |                                                                          |             
      Inflammation, Chronic Active         |                                                                   2      |             
      Epidermis, Hyperplasia               |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  44                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 6| 7| 7| 7| 6| 5| 6| 6| 5| 5| 6| 7| 6| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|             
                             DAY ON TEST   | 6| 2| 2| 1| 6| 0| 4| 4| 7| 6| 3| 0| 1| 2| 8| 1| 5| 9| 4| 9| 6| 6| 3| 0| 7|             
                                           | 9| 3| 3| 2| 9| 2| 1| 1| 9| 2| 4| 9| 9| 3| 3| 0| 2| 4| 2| 7| 1| 9| 5| 9| 0|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
    0.06%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM - cont             |                                                                          |             
                                           |                                                                          |             
      Fibrous Osteodystrophy               |          2                                         2     2  4  4        4|             
      Osteopetrosis                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                                 3                        |             
                                            __________________________________________________________________________|             
   Peripheral Nerve                        |                                              +                           |             
                                            __________________________________________________________________________|             
   Spinal Cord                             |                                              +                           |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Metaplasia, Osseous                  |          1                                                               |             
      Alveolar Epithelium, Hyperplasia     |                      1                                                   |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      |    1  1  1                    1        1     1        1              1   |             
      Artery, Thrombosis                   |                                                                          |             
      Artery, Vein, Mineralization         | 1  1  1  1              1  1  1     1  1  1  1  1  1  1  1  3  1  1  1  1|             
      Interstitium, Mineralization         |                                                             3           2|             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |       1                                                                  |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |    2                       3                          4        2     2  4|             
      Inflammation, Suppurative            |             3           2                                                |             
      Arteriole, Venule, Thrombosis        |                4        4                                                |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                              +                           |             
                                            __________________________________________________________________________|             
   Zymbal's Gland                          |                      +                                                   |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |             4                                                            |             
      Inflammation, Suppurative            |                      3                                                   |             
      Nephropathy, Chronic                 | 3  3  2  4  3  2  2  3  3  3  2  3  2  3  2  2  3  4  2  4  4  4  2  2  4|             
      Renal Tubule, Hyperplasia            |                                                       3                  |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Suppurative            |                                                                         2|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  45                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 3| 6| 5| 7| 7| 5| 6| 6| 7| 6| 6| 5| 7| 7| 5| 6| 6| 6| 5| 6| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 3| 5| 0| 2| 1| 4| 9| 3| 0| 1| 2| 2| 0| 1| 4| 8| 7| 7| 8| 7| 0| 2|            |
                                           | 5| 3| 3| 0| 4| 2| 3| 0| 4| 7| 5| 9| 9| 7| 6| 3| 2| 2| 3| 3| 4| 3| 4| 3| 3|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |                                                                          |      1  2.0|
      Parasite Metazoan                    |                   X                                                      |      2     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |                                                                          |      1  2.0|
      Parasite Metazoan                    |                                                                X  X      |      3     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Erosion                              |                            2  3                                          |      2  2.5|
      Inflammation, Suppurative            |                            2  2                                          |      2  2.0|
      Mineralization                       |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     | X  X  X                             X                                   X|      9     |
      Eosinophilic Focus                   |                      X                 3                             3   |      6  3.0|
      Hepatodiaphragmatic Nodule           |                                                                X         |      2     |
      Inflammation, Chronic                | 1                 1     1     1     2     1     1  2     1        1     1|     19  1.2|
      Mixed Cell Focus                     |       X                                                                  |      2     |
      Pigmentation, Hemosiderin            | 1  1  1  1           1        1              1        1     1  1         |     18  1.2|
      Bile Duct, Hyperplasia               | 2  3  2  2  2  2  2  3  1  1  1  3  1  3  1  3  2  3  3  2  2  3  2  3  2|     50  2.2|
      Hepatocyte, Degeneration, Cystic     |    2        2     1        1     3  2  1                 2  1     2     1|     27  1.6|
      Hepatocyte, Necrosis                 |          2     3           1                       2     1           2   |     12  1.8|
      Hepatocyte, Vacuolization Cytoplasmic| 2  2  2  1  2     2  1     3        2     1     1     1  1  2     2     2|     28  1.7|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Degeneration                     |             2                                                            |      1  2.0|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      | 1     2           2        1        2                    1              2|     14  1.4|
                                            __________________________________________________________________________|____________|
   Mesentery                               |                         +        +                 +                    +|   6        |
      Fat, Necrosis                        |                                                                         4|      3  4.0|
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                                          |      1  1.0|
      Acinus, Atrophy                      |       1        1                 2     2     1  1     1     1            |     14  1.5|
      Artery, Inflammation, Chronic Active |                                                                         4|      1  4.0|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |             3                                                            |      3  3.0|
      Perforation                          |                                                       X                  |      2     |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  46                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 3| 6| 5| 7| 7| 5| 6| 6| 7| 6| 6| 5| 7| 7| 5| 6| 6| 6| 5| 6| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 3| 5| 0| 2| 1| 4| 9| 3| 0| 1| 2| 2| 0| 1| 4| 8| 7| 7| 8| 7| 0| 2|            |
                                           | 5| 3| 3| 0| 4| 2| 3| 0| 4| 7| 5| 9| 9| 7| 6| 3| 2| 2| 3| 3| 4| 3| 4| 3| 3|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
      Epithelium, Hyperplasia              | 2                          3  3                 2     2     2            |     11  2.2|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           | 4                          3  3                 4     3     1            |     10  3.1|
      Epithelium, Ulcer                    | 4                          4  4                 4                        |      7  4.0|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       | 2           3                       2                                    |      6  2.3|
      Epithelium, Erosion                  |                                                                          |      1  3.0|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                                                          |      1  1.0|
      Epithelium, Necrosis                 |                                                                          |      1  3.0|
      Epithelium, Ulcer                    |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Tooth                                   |                                                    +                     |   1        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Aorta, Mineralization                | 2           4                                                            |      5  3.0|
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy, Chronic              | 3  2  2  2  3     2  2  1     2  2  2  1  2  2  2     2  2  2     2  2  2|     45  2.1|
      Mineralization                       |             3                                                            |      4  2.3|
      Atrium, Thrombosis                   |                                        3                                 |      3  2.3|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |                                                                         2|      2  2.0|
      Degeneration, Fatty                  | 2              2           3  2        2     2        1           1      |     18  1.8|
      Hyperplasia                          |                   1                                               1      |      4  1.3|
      Hypertrophy                          |                                        2                                 |      2  2.0|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                                                          |      1  4.0|
      Hyperplasia                          |    2  1     2  1     2     1  1        2     1     4  4  2              1|     22  1.9|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  M  M  +  +  M  +  M  M|  41        |
      Hyperplasia                          | 4  2        4        3     3        3           2           2     3      |     16  2.9|
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Pars Distalis, Cyst                  |                1                                                  2      |      7  1.6|
      Pars Distalis, Hyperplasia           |       2     2  1  2     2  2           2                       2         |     18  2.0|
      Pars Intermedia, Cyst                |                1                                                  2      |      2  1.5|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      C-Cell, Hyperplasia                  |                1     1        1        1  1           1  1  2            |     11  1.1|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  47                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 3| 6| 5| 7| 7| 5| 6| 6| 7| 6| 6| 5| 7| 7| 5| 6| 6| 6| 5| 6| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 3| 5| 0| 2| 1| 4| 9| 3| 0| 1| 2| 2| 0| 1| 4| 8| 7| 7| 8| 7| 0| 2|            |
                                           | 5| 3| 3| 0| 4| 2| 3| 0| 4| 7| 5| 9| 9| 7| 6| 3| 2| 2| 3| 3| 4| 3| 4| 3| 3|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
      Follicle, Cyst                       |                                                                      2   |      3  2.3|
      Follicular Cell, Hyperplasia, Cystic |          2                                                               |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Peritoneum                              |                         +                                                |   1        |
                                            __________________________________________________________________________|____________|
   Tissue NOS                              |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Coagulating Gland                       |                               +                                          |   1        |
      Inflammation, Chronic Active         |                               4                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Granuloma Sperm                      |                            2                                             |      3  2.7|
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  2.0|
      Hyperplasia                          |                            4           3                                 |      7  3.1|
      Inflammation, Chronic Active         | 1  2  2  2  3  2  2  2  2  3  1  2  2  2  1  2  2  1        2  1  2  1  2|     47  2.0|
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         | 3  1     1     2  2     1     3  2     2  3  1  1  2        2     1  2  2|     34  1.9|
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |             2                                                            |      1  2.0|
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Germinal Epithelium, Degeneration    |                         2                                                |      2  2.5|
      Interstitial Cell, Hyperplasia       |                2        1     1                                1     1   |     11  1.3|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                  3                                       |      1  3.0|
      Hyperplasia                          | 3  3  4        4  3  4  4              4     4     4  4  3     3  3  4  3|     35  3.6|
      Inflammation, Suppurative            |                                                                          |      1  2.0|
      Myelofibrosis                        |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |                +     +           +     +     +  +  +  +        +     +   |  23        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ectasia                              |                      3                                                   |      3  2.7|
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ectasia                              |                                                             2            |      2  2.5|
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Fibrosis                             | 2  2  2  1           1     3  3              3           3  2  3  3      |     19  2.5|
      Hematopoietic Cell Proliferation     |                         2                                3               |      2  2.5|
      Metaplasia, Lipocyte                 |                                                                          |      1  4.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  48                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 3| 6| 5| 7| 7| 5| 6| 6| 7| 6| 6| 5| 7| 7| 5| 6| 6| 6| 5| 6| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 3| 5| 0| 2| 1| 4| 9| 3| 0| 1| 2| 2| 0| 1| 4| 8| 7| 7| 8| 7| 0| 2|            |
                                           | 5| 3| 3| 0| 4| 2| 3| 0| 4| 7| 5| 9| 9| 7| 6| 3| 2| 2| 3| 3| 4| 3| 4| 3| 3|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  47        |
      Cyst                                 |                                                                          |      2  2.0|
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Cyst                                 |                                                                          |      1  3.0|
      Hyperplasia, Cystic                  | 1     1                    2  2        2  3     2  2  2     3  2         |     25  2.0|
      Mineralization                       |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperkeratosis                       |                   3                                                      |      1  3.0|
      Inflammation, Chronic Active         |                                                                          |      1  2.0|
      Epidermis, Hyperplasia               |                   2                                                      |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Fibrous Osteodystrophy               | 3           4              2        4                                    |     10  3.1|
      Osteopetrosis                        |                   2                       2                              |      2  2.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hemorrhage                           |                                                 4                        |      2  3.5|
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Metaplasia, Osseous                  |                                                                          |      1  1.0|
      Alveolar Epithelium, Hyperplasia     |                                                                          |      1  1.0|
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      | 1  1  1           1  1  1  1  1                 1                       1|     18  1.0|
      Artery, Thrombosis                   |                                        2                                 |      1  2.0|
      Artery, Vein, Mineralization         | 1  1  1     2  1  1  1     1  1     1  1  1  1  1  1  1  1  1  1  1  1  1|     42  1.1|
      Interstitium, Mineralization         |             2                                                            |      3  2.3|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |    2                 3  3           1        3        2                  |     12  2.6|
      Inflammation, Suppurative            |          2                             2           3        3  3         |      7  2.6|
      Arteriole, Venule, Thrombosis        |                                                                          |      2  4.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  49                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 7| 7| 7| 3| 6| 5| 7| 7| 5| 6| 6| 7| 6| 6| 5| 7| 7| 5| 6| 6| 6| 5| 6| 5| 7|            |
                             DAY ON TEST   | 1| 2| 2| 3| 5| 0| 2| 1| 4| 9| 3| 0| 1| 2| 2| 0| 1| 4| 8| 7| 7| 8| 7| 0| 2|            |
                                           | 5| 3| 3| 0| 4| 2| 3| 0| 4| 7| 5| 9| 9| 7| 6| 3| 2| 2| 3| 3| 4| 3| 4| 3| 3|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1|      A     |
    0.06%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                                                          |   1        |
                                            __________________________________________________________________________|____________|
   Zymbal's Gland                          |                                                                          |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                          2               |      2  3.0|
      Inflammation, Suppurative            |                                                                          |      1  3.0|
      Nephropathy, Chronic                 | 4  3  3  2  4  2  2  3     4  3  3  3  2  2  4  3     3  2  4  3  4  2  3|     48  2.9|
      Renal Tubule, Hyperplasia            |                                                             3            |      2  3.0|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Suppurative            |                                                                          |      1  2.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  50                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 6| 5| 6| 6| 6| 6| 6| 7| 6| 6| 5| 5| 5| 5| 6| 6| 6| 5| 6| 5| 6| 7| 3|             
                             DAY ON TEST   | 2| 8| 4| 7| 1| 9| 8| 6| 6| 2| 3| 4| 6| 5| 8| 5| 8| 5| 1| 7| 3| 9| 4| 1| 5|             
                                           | 9| 9| 1| 6| 9| 1| 3| 7| 8| 3| 2| 1| 2| 8| 5| 1| 3| 5| 3| 2| 5| 9| 8| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                          |             
      Ulcer                                |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |                X                                                         |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ulcer                                |                                                       4                  |             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |                            X                          X        X         |             
      Clear Cell Focus                     |                                                                          |             
      Eosinophilic Focus                   | X  X                                                                     |             
      Hepatodiaphragmatic Nodule           |                X                                                         |             
      Inflammation, Chronic                | 1           1  2           1  1              2  1  1              2  2   |             
      Pigmentation, Hemosiderin            |                2  1  1           1  1                             1  1   |             
      Bile Duct, Hyperplasia               | 2  3  2  2  1  1  1  3  2  1  2  3  3  3  3  2  1  2  1  2  1  2  2  2  3|             
      Hepatocyte, Degeneration, Cystic     | 1  3     2  2  2  2     1     1  1              2  2           1     2   |             
      Hepatocyte, Necrosis                 |    2                                                           2         |             
      Hepatocyte, Vacuolization Cytoplasmic| 3     2     2     2     2  2     1        3  2              1  1  2  2   |             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      | 1     1  2  2  2  2        2  2  2           2  2  2  2     2  2  2  2   |             
                                            __________________________________________________________________________|             
   Mesentery                               | +              +                          +           +                  |             
      Hemorrhage                           |                4                                                         |             
      Inflammation, Chronic Active         |                3                                                         |             
      Fat, Inflammation, Chronic Active    |                                                       3                  |             
      Fat, Mineralization                  |                                                                          |             
      Fat, Necrosis                        |                                                                          |             
      Fat, Pigmentation, Hematoidin        |                                                                          |             
      Fat, Pigmentation, Hemosiderin       |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Acinus, Atrophy                      |                            1                 1  1     1                  |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                   4                                                      |             
      Mineralization                       |                         3                                                |             
      Perforation                          |                   X                                                      |             
      Epithelium, Hyperplasia              |       2           3  3        2           2        2        2  2  2  2   |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                   4  3        4           3        3     3     2  3  4  1|             
      Epithelium, Ulcer                    |                   4  4        4           4        4     4     2  4  4  4|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  51                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 6| 5| 6| 6| 6| 6| 6| 7| 6| 6| 5| 5| 5| 5| 6| 6| 6| 5| 6| 5| 6| 7| 3|             
                             DAY ON TEST   | 2| 8| 4| 7| 1| 9| 8| 6| 6| 2| 3| 4| 6| 5| 8| 5| 8| 5| 1| 7| 3| 9| 4| 1| 5|             
                                           | 9| 9| 1| 6| 9| 1| 3| 7| 8| 3| 2| 1| 2| 8| 5| 1| 3| 5| 3| 2| 5| 9| 8| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |          1  2           3     2              2                 2         |             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |                                                                          |             
      Epithelium, Necrosis                 |                   2                                                      |             
                                            __________________________________________________________________________|             
   Tongue                                  |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Aorta, Mineralization                |             1           3                                                |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              | 1  2  2  2  3  1  1     3  2  2  2        2  2  2  2  2  2  2  2  2  2   |             
      Mineralization                       |                         2                                                |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Adrenal Cortical Nodule    |                                                                          |             
      Atrophy                              |                                                    3                     |             
      Degeneration, Fatty                  | 2                 4           1           3  2              1  2  2  1   |             
      Hyperplasia                          | 1                       2                       1           1            |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 1  2  2        1  3  1        1  2        2  2  2        1  2  1     2   |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |       3  2  3  2  3     3     3  3           3  3  3        3  3  3  2   |             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Pars Distalis, Cyst                  |             3                                                            |             
      Pars Distalis, Hyperplasia           |    2  2        1              2  1        1  1              2     2      |             
      Pars Intermedia, Cyst                |       2                                                                  |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  |                      1                                                   |             
      Follicle, Cyst                       |                                                                          |             
      Follicle, Hyperplasia, Cystic        |                                                             2            |             
      Follicular Cell, Hyperplasia, Cystic | 2                                                                        |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Peritoneum                              |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Granuloma Sperm                      |                                                                          |             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                        4                 3               |             
      Hyperplasia                          |                                  1                                       |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  52                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 6| 5| 6| 6| 6| 6| 6| 7| 6| 6| 5| 5| 5| 5| 6| 6| 6| 5| 6| 5| 6| 7| 3|             
                             DAY ON TEST   | 2| 8| 4| 7| 1| 9| 8| 6| 6| 2| 3| 4| 6| 5| 8| 5| 8| 5| 1| 7| 3| 9| 4| 1| 5|             
                                           | 9| 9| 1| 6| 9| 1| 3| 7| 8| 3| 2| 1| 2| 8| 5| 1| 3| 5| 3| 2| 5| 9| 8| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Inflammation, Chronic Active         | 1  1  1  2  1  2  2  2  4  3  2  2  2  2  2  3     2     1  1  2  1  2   |             
                                            __________________________________________________________________________|             
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                    2                     |             
      Inflammation, Chronic Active         | 4  2     2  2     2  2  2  2     3     1  1  2  1  2     1     3  2  2  2|             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       |                         2                                                |             
                                            __________________________________________________________________________|             
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Necrosis                             |                                                       4                  |             
      Germinal Epithelium, Degeneration    |                                                 2                        |             
      Interstitial Cell, Hyperplasia       | 2                                   1     1     1                        |             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 4  4     3     3     3  4        4  3  4     4  4  4  4  4               |             
                                            __________________________________________________________________________|             
   Lymph Node                              |    +                    +           +  +  +                             +|             
      Lumbar, Hyperplasia, Lymphoid        |                                                                          |             
      Mediastinal, Hyperplasia, Plasma Cell|                                                                          |             
      Renal, Ectasia                       |                                                                          |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |                                                       3                  |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Accessory Spleen                     |                                        X                                 |             
      Congestion                           |                                                                          |             
      Fibrosis                             |                            2                    2  4              2  2   |             
      Hematopoietic Cell Proliferation     | 2        2                       3                                       |             
      Necrosis                             |                                                          4               |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  +  +  +  +  M  M  M  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +|             
      Cyst                                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                                                                      4   |             
      Hyperplasia, Cystic                  |          2  1                       1     2                    2  2  3   |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                      3                                                   |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrous Osteodystrophy               |       4  3  4     2     3     2  4  4        4  4  3           3  2      |             
      Necrosis                             |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  53                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 6| 5| 6| 6| 6| 6| 6| 7| 6| 6| 5| 5| 5| 5| 6| 6| 6| 5| 6| 5| 6| 7| 3|             
                             DAY ON TEST   | 2| 8| 4| 7| 1| 9| 8| 6| 6| 2| 3| 4| 6| 5| 8| 5| 8| 5| 1| 7| 3| 9| 4| 1| 5|             
                                           | 9| 9| 1| 6| 9| 1| 3| 7| 8| 3| 2| 1| 2| 8| 5| 1| 3| 5| 3| 2| 5| 9| 8| 2| 4|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.13%                                  | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Hemorrhage                           |                                        3                 2              3|             
      Inflammation, Chronic Active         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |             2                                                     1      |             
      Alveolar Epithelium, Hyperplasia     |          2                                                               |             
      Alveolus, Hemorrhage                 |          2                                                               |             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      |                1           1  1           1  1  1           1  1     1   |             
      Alveolus, Inflammation, Suppurative  |                                                                          |             
      Artery, Vein, Mineralization         | 1  1     1     1  1  1  1  1  1     1  1  1  1  1  1  1     1  1  1  1  1|             
      Interstitium, Mineralization         |          2                                                               |             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |                                                                          |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                            2        2                                    |             
      Inflammation, Suppurative            |                         2                                                |             
      Nasolacrimal Duct, Inflammation,     |                                                                          |             
           Suppurative                     |                   3                             1                        |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Eye                                     |                                                             +            |             
      Anterior Chamber, Inflammation,      |                                                                          |             
          Suppurative                      |                                                                          |             
      Lens, Cataract                       |                                                             3            |             
      Retina, Degeneration                 |                                                             4            |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                2                                2              2         |             
      Nephropathy, Chronic                 | 3  2  4  4  4  4  4  3  4  3  4  4  2  3  2  4  4  4  2  3  4  4  4  4  2|             
      Renal Tubule, Hyperplasia            |             1                                3                           |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
                                                             Page  54                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 6| 6| 6| 7| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 5| 4| 6|            |
                             DAY ON TEST   | 1| 1| 8| 5| 2| 2| 8| 8| 2| 6| 7| 3| 7| 3| 6| 9| 4| 8| 6| 5| 2| 2| 6| 3| 9|            |
                                           | 3| 2| 8| 4| 7| 3| 9| 3| 7| 4| 4| 1| 3| 5| 9| 7| 3| 3| 7| 9| 3| 3| 1| 7| 8|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                      3                                                   |      1  3.0|
      Ulcer                                |                      4                                                   |      1  4.0|
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Parasite Metazoan                    |          X                                                               |      1     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Parasite Metazoan                    |                                                                          |      1     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Ulcer                                |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     | X     X                                      X  X     X                  |      8     |
      Clear Cell Focus                     |                                                       X     X            |      2     |
      Eosinophilic Focus                   |       X                                X                       X         |      5     |
      Hepatodiaphragmatic Nodule           | X              X              X           X                              |      5     |
      Inflammation, Chronic                | 1  1  1                    1  1           2  1        1  1  1        2  1|     22  1.3|
      Pigmentation, Hemosiderin            |       1     1  1     1              1     1  1        1                  |     15  1.1|
      Bile Duct, Hyperplasia               | 1  1  2  1  3  3  2  1  2  1  1  1  1  3  2  1  2  2  2  1  2  3  3  1  1|     50  1.9|
      Hepatocyte, Degeneration, Cystic     | 1  1  1        3  2        1     2  1  2  2  2  2     2     1            |     27  1.7|
      Hepatocyte, Necrosis                 |       1  3                                      3     3                  |      6  2.3|
      Hepatocyte, Vacuolization Cytoplasmic| 3  2  2  3  2        3  4  1  3  1  1  1  2  1  3  1  3  1  2           3|     33  2.0|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      | 2  2  3  3     2     2     2  3  2  2     1  2  2     1     2           2|     33  2.0|
                                            __________________________________________________________________________|____________|
   Mesentery                               |             +           +  +              +                             +|   9        |
      Hemorrhage                           |                                                                          |      1  4.0|
      Inflammation, Chronic Active         |                                                                          |      1  3.0|
      Fat, Inflammation, Chronic Active    |                                                                          |      1  3.0|
      Fat, Mineralization                  |                                                                         3|      1  3.0|
      Fat, Necrosis                        |                         4  4              4                             4|      4  4.0|
      Fat, Pigmentation, Hematoidin        |                                                                         1|      1  1.0|
      Fat, Pigmentation, Hemosiderin       |                                                                         3|      1  3.0|
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Acinus, Atrophy                      |       1           1  2                 1        1        1  1        1   |     12  1.1|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |                                                                          |      1  4.0|
      Mineralization                       |                                                 3  3                     |      3  3.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  55                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 6| 6| 6| 7| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 5| 4| 6|            |
                             DAY ON TEST   | 1| 1| 8| 5| 2| 2| 8| 8| 2| 6| 7| 3| 7| 3| 6| 9| 4| 8| 6| 5| 2| 2| 6| 3| 9|            |
                                           | 3| 2| 8| 4| 7| 3| 9| 3| 7| 4| 4| 1| 3| 5| 9| 7| 3| 3| 7| 9| 3| 3| 1| 7| 8|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
      Perforation                          |                                                                          |      1     |
      Epithelium, Hyperplasia              |          2     3     2  3        2  2        2        3              2   |     19  2.3|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                      2  3                             4              3   |     14  3.0|
      Epithelium, Ulcer                    |                         4                             4              4   |     13  3.8|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       | 3  3     1                       1        2     3  3  2                 1|     15  2.1|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
          Active                           |                                     2                                    |      1  2.0|
      Epithelium, Necrosis                 |                                     3                                    |      2  2.5|
                                            __________________________________________________________________________|____________|
   Tongue                                  |                            +                                             |   1        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Aorta, Mineralization                | 3  4                       2              4     3  4                    3|      9  3.0|
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy, Chronic              | 3  3  2  2     2     2  2  3  2  3  2  2  3  2  3  3  2  2  2  2     1  3|     43  2.1|
      Mineralization                       | 1        2                 2     1        2     3  3                     |      8  2.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Adrenal Cortical Nodule    |                                                                2         |      1  2.0|
      Atrophy                              |                                                                          |      1  3.0|
      Degeneration, Fatty                  |    3           1  1  2  1        2           1     2              2  1   |     19  1.8|
      Hyperplasia                          |                         2                    2     1        4     2      |      9  1.8|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          | 2  1  2  2        1     1  1  4        2     4  1  3  2     4           1|     30  1.9|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  M  +  +  +  +  +  M  +  +  +  +  +  +  +  M  +  +  +  +  +  M  +  +|  46        |
      Hyperplasia                          | 3  3     4                 2     3  2     4  4     4  3                 2|     26  2.9|
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  48        |
      Pars Distalis, Cyst                  |                                                             2            |      2  2.5|
      Pars Distalis, Hyperplasia           |    2  2  2     1                 2                       2  1            |     16  1.6|
      Pars Intermedia, Cyst                |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  49        |
      C-Cell, Hyperplasia                  |       1           2                       3                 1            |      5  1.6|
      Follicle, Cyst                       |          3                                                               |      1  3.0|
      Follicle, Hyperplasia, Cystic        |                                                                          |      1  2.0|
      Follicular Cell, Hyperplasia, Cystic |                                                                          |      1  2.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  56                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 6| 6| 6| 7| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 5| 4| 6|            |
                             DAY ON TEST   | 1| 1| 8| 5| 2| 2| 8| 8| 2| 6| 7| 3| 7| 3| 6| 9| 4| 8| 6| 5| 2| 2| 6| 3| 9|            |
                                           | 3| 2| 8| 4| 7| 3| 9| 3| 7| 4| 4| 1| 3| 5| 9| 7| 3| 3| 7| 9| 3| 3| 1| 7| 8|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ENDOCRINE SYSTEM - cont                   |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Peritoneum                              |             +                                                            |   1        |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Granuloma Sperm                      |    3                                               3                    1|      3  2.3|
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                          3               |      3  3.3|
      Hyperplasia                          |                                                          2        2      |      3  1.7|
      Inflammation, Chronic Active         | 2  2  2     2  1  2  2              2  2  1  1     2  2  2     2  2  2  2|     40  1.9|
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                                                          |      1  2.0|
      Inflammation, Chronic Active         | 2  2           2     3  2           2     1     3  3  1     2  1  1  2  1|     34  1.9|
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Mineralization                       |                                                 2                        |      2  2.0|
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Necrosis                             |                                                                          |      1  4.0|
      Germinal Epithelium, Degeneration    |             3                                                            |      2  2.5|
      Interstitial Cell, Hyperplasia       |             1        1              2  2                                 |      8  1.4|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia                          |       4  4  4  4  4        3  4        4        3  3     4  3  4        4|     28  3.7|
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +              +  +  +                 +        +           +  +  +     +|  16        |
      Lumbar, Hyperplasia, Lymphoid        |                      3                                                   |      1  3.0|
      Mediastinal, Hyperplasia, Plasma Cell|                                                                         2|      1  2.0|
      Renal, Ectasia                       | 2                                                                        |      1  2.0|
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  48        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Ectasia                              | 3                             2     3                                    |      4  2.8|
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Accessory Spleen                     |                                                                          |      1     |
      Congestion                           |                                                                         3|      1  3.0|
      Fibrosis                             |    2                          2        2                                3|      9  2.3|
      Hematopoietic Cell Proliferation     | 2  2     2                                                               |      6  2.2|
      Necrosis                             |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  M  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +|  44        |
      Cyst                                 |                                                    2                     |      1  2.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  57                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 6| 6| 6| 7| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 5| 4| 6|            |
                             DAY ON TEST   | 1| 1| 8| 5| 2| 2| 8| 8| 2| 6| 7| 3| 7| 3| 6| 9| 4| 8| 6| 5| 2| 2| 6| 3| 9|            |
                                           | 3| 2| 8| 4| 7| 3| 9| 3| 7| 4| 4| 1| 3| 5| 9| 7| 3| 3| 7| 9| 3| 3| 1| 7| 8|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                                     3                                    |      2  3.5|
      Hyperplasia, Cystic                  |             1  3  2  3  2        1  2              2                 2   |     16  1.9|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                                          |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Fibrous Osteodystrophy               | 4  4  3  2                 2     3  2     4  3  4  4  2                 4|     26  3.2|
      Necrosis                             |                                              4                           |      1  4.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +|  49        |
      Hemorrhage                           |                                                                   3      |      4  2.8|
      Inflammation, Chronic Active         |                                                             2            |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                               2                                          |      3  1.7|
      Alveolar Epithelium, Hyperplasia     |             2                                                            |      2  2.0|
      Alveolus, Hemorrhage                 |                                                                          |      1  2.0|
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      |    1  1                 1           1        1     1  1     1        1  1|     19  1.0|
      Alveolus, Inflammation, Suppurative  |                            2                                             |      1  2.0|
      Artery, Vein, Mineralization         | 1  1  1  1  1  1  1  1  1  1  1  1  1     1  1        1  1  1  1  1  1  1|     43  1.0|
      Interstitium, Mineralization         | 2  2                       2              2     2  3                     |      7  2.1|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                                                             1            |      1  1.0|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         | 2  3        2                                2           2     2  3  4   |     10  2.4|
      Inflammation, Suppurative            |                      4                    2                              |      3  2.7|
      Nasolacrimal Duct, Inflammation,     |                                                                          |            |
           Suppurative                     |                                                                          |      2  2.0|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |                                           +                              |   2        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  58                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 6| 6| 6| 6| 6| 7| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 5| 4| 6|            |
                             DAY ON TEST   | 1| 1| 8| 5| 2| 2| 8| 8| 2| 6| 7| 3| 7| 3| 6| 9| 4| 8| 6| 5| 2| 2| 6| 3| 9|            |
                                           | 3| 2| 8| 4| 7| 3| 9| 3| 7| 4| 4| 1| 3| 5| 9| 7| 3| 3| 7| 9| 3| 3| 1| 7| 8|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|      A     |
    0.13%                                  | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 SPECIAL SENSES SYSTEM - cont              |                                                                          |            |
                                           |                                                                          |            |
      Anterior Chamber, Inflammation,      |                                                                          |            |
          Suppurative                      |                                           2                              |      1  2.0|
      Lens, Cataract                       |                                                                          |      1  3.0|
      Retina, Degeneration                 |                                           3                              |      2  3.5|
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |          2                 2  2           3     2     2  3     2        3|     12  2.3|
      Nephropathy, Chronic                 | 4  4  4  4  3  3  2  3  3  4  3  4  4  2  4  4  4  4  4  3  3  3  3  2  4|     50  3.4|
      Renal Tubule, Hyperplasia            |                1                                                        4|      4  2.3|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  59                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 5| 5| 5| 6| 6| 6| 5| 5| 5| 4| 5| 4| 5| 5| 5| 2| 5| 5| 5| 5| 5| 5| 5|             
                             DAY ON TEST   | 3| 7| 8| 6| 7| 1| 7| 3| 8| 8| 8| 3| 3| 3| 8| 3| 8| 5| 8| 6| 8| 8| 9| 8| 9|             
                                           | 8| 2| 9| 1| 3| 0| 4| 2| 5| 8| 9| 6| 3| 7| 9| 2| 9| 4| 9| 2| 5| 5| 9| 3| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM                         |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Esophagus                               | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Large, Colon                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +|             
      Mineralization                       |                                                                          |             
      Muscularis, Mineralization           |                                                                          |             
                                            __________________________________________________________________________|             
   Intestine Large, Rectum                 | A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Parasite Metazoan                    |                   X        X                                             |             
                                            __________________________________________________________________________|             
   Intestine Large, Cecum                  | A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Duodenum               | A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Jejunum                | A  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  A  +  +  +|             
                                            __________________________________________________________________________|             
   Intestine Small, Ileum                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Basophilic Focus                     |    X                    X                                                |             
      Clear Cell Focus                     |             X                                                            |             
      Eosinophilic Focus                   |                               X                                      X   |             
      Hepatodiaphragmatic Nodule           |                                     X                                    |             
      Inflammation, Chronic                |       1     1  1        1     1     2           1     2  1  1  1  2     1|             
      Mixed Cell Focus                     |    X                                                                     |             
      Pigmentation, Hemosiderin            |       1  2     1        1                       1                 2  1  1|             
      Bile Duct, Hyperplasia               | 1  2  2  1     1  3  2  1  2  2  3  1     1  2  1     1  1  1     1  2  2|             
      Hepatocyte, Degeneration, Cystic     | 1                 2  4  2     1     1                       1     1      |             
      Hepatocyte, Necrosis                 |                   2  2     3     1                                2  2   |             
      Hepatocyte, Vacuolization Cytoplasmic| 3  3  3  2  3  2  2  3  2  3  2     1  3  3  2  1  2  3  3  3  2  2     2|             
      Hepatocyte, Centrilobular,           |                                                                          |             
          Hypertrophy                      | 2  2  2  1  2  2        2  2  2     3  2  3  2  3  3  3  3  2  3  1     2|             
                                            __________________________________________________________________________|             
   Mesentery                               |                                     +                                    |             
      Angiectasis                          |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
      Artery, Inflammation, Chronic Active |                                                                          |             
      Artery, Mineralization               |                                                                          |             
      Artery, Necrosis, Fibrinoid          |                                                                          |             
                                            __________________________________________________________________________|             
   Pancreas                                | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Acinus, Atrophy                      |       2           1           1                                          |             
      Acinus, Hypertrophy                  |                                                                      2   |             
                                            __________________________________________________________________________|             
   Salivary Glands                         | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                                         4|             
      Mineralization                       |    1        1           2                                   2     2      |             
      Epithelium, Hyperplasia              |       2  2                                                              3|             
      Epithelium, Inflammation, Chronic    |                                                                          |             
          Active                           |       2  2                                                               |             
      Epithelium, Ulcer                    |       4                                                                 4|             
                                            __________________________________________________________________________|             
   Stomach, Glandular                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Mineralization                       | 3  3  2  2  2  2     2  3  2        3  3  2  3  3  2        3  2  3     2|             
      Epithelium, Necrosis                 |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  60                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 5| 5| 5| 6| 6| 6| 5| 5| 5| 4| 5| 4| 5| 5| 5| 2| 5| 5| 5| 5| 5| 5| 5|             
                             DAY ON TEST   | 3| 7| 8| 6| 7| 1| 7| 3| 8| 8| 8| 3| 3| 3| 8| 3| 8| 5| 8| 6| 8| 8| 9| 8| 9|             
                                           | 8| 2| 9| 1| 3| 0| 4| 2| 5| 8| 9| 6| 3| 7| 9| 2| 9| 4| 9| 2| 5| 5| 9| 3| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 ALIMENTARY SYSTEM - cont                  |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 CARDIOVASCULAR SYSTEM                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                                                 4                        |             
      Necrosis, Fibrinoid                  |                                                 2                        |             
      Aorta, Mineralization                | 3  2  3     2  3     3  4  3        4  3  3  3  4           3  1  4      |             
                                            __________________________________________________________________________|             
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cardiomyopathy, Chronic              | 3  3  3  2  3  2  2  3  3  2  1  2  3  2  3  3  2  2  1  2  3  3  3     2|             
      Mineralization                       | 1  2        2        2  2              2     3                    2      |             
      Atrium, Thrombosis                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 ENDOCRINE SYSTEM                          |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Degeneration, Fatty                  |    2  1                                         2           1  1         |             
      Hyperplasia                          |       2                                         2           1           2|             
      Mineralization                       |                                                    3                     |             
      Necrosis                             |                                                    2                     |             
                                            __________________________________________________________________________|             
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +|             
      Hyperplasia                          |       1  3  2  2  1  2  2     1  1     1  1           1  1     2  2  2   |             
                                            __________________________________________________________________________|             
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Parathyroid Gland                       | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          | 3     3  2  3  3  2  4  3  2        3  2  3  3  4  2     2  4  3  3     3|             
                                            __________________________________________________________________________|             
   Pituitary Gland                         | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Craniopharyngeal Duct, Cyst          |       2                                                                  |             
      Pars Distalis, Cyst                  |                                                       3     2            |             
      Pars Distalis, Hyperplasia           |       2              2              2                                    |             
      Pars Intermedia, Cyst                |                                                                          |             
                                            __________________________________________________________________________|             
   Thyroid Gland                           | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      C-Cell, Hyperplasia                  |                                                                          |             
      Follicle, Cyst                       |                      4     3                             3  2            |             
      Follicular Cell, Hyperplasia         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 GENERAL BODY SYSTEM                       |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Peritoneum                              |                                     +                                    |             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Coagulating Gland                       |                                                                          |             
      Inflammation, Chronic Active         |                                                                          |             
                                            __________________________________________________________________________|             
   Epididymis                              | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Granuloma Sperm                      |                            2                                             |             
      Mineralization                       |                      3  4                       2                        |             
      Necrosis                             |                                     4                                    |             
                                            __________________________________________________________________________|             
   Preputial Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia                          |                                              4     3                     |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  61                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 5| 5| 5| 6| 6| 6| 5| 5| 5| 4| 5| 4| 5| 5| 5| 2| 5| 5| 5| 5| 5| 5| 5|             
                             DAY ON TEST   | 3| 7| 8| 6| 7| 1| 7| 3| 8| 8| 8| 3| 3| 3| 8| 3| 8| 5| 8| 6| 8| 8| 9| 8| 9|             
                                           | 8| 2| 9| 1| 3| 0| 4| 2| 5| 8| 9| 6| 3| 7| 9| 2| 9| 4| 9| 2| 5| 5| 9| 3| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 GENITAL SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
      Inflammation, Chronic Active         | 1  2  1  2  2  2  2  2  2  1  2  2  2  2  1  2  2  3  1  1  1  2  2  2  1|             
                                            __________________________________________________________________________|             
   Prostate                                | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |          1  1  3  2  3     1  2     1  1     1  2     2  4  2  2         |             
      Mineralization                       |             2           1                                                |             
                                            __________________________________________________________________________|             
   Seminal Vesicle                         | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                          |             
      Mineralization                       |                         3                                   2     3      |             
                                            __________________________________________________________________________|             
   Testes                                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Germinal Epithelium, Degeneration    |          1                                                               |             
      Interstitial Cell, Hyperplasia       |          1     1              2        1                    1        1  2|             
 _____________________________________________________________________________________________________________________|             
 HEMATOPOIETIC SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Atrophy                              |                                                                      4   |             
      Hyperplasia                          |                   4           3  4  4        3     4                     |             
      Myelofibrosis                        |                   1                                                      |             
                                            __________________________________________________________________________|             
   Lymph Node                              |             +     +              +              +        +     +         |             
      Renal, Ectasia                       |                                                 2        2               |             
      Renal, Erythrophagocytosis           |             3                                                            |             
      Renal, Pigmentation, Hemosiderin     |                                                          1               |             
                                            __________________________________________________________________________|             
   Lymph Node, Mandibular                  | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
                                            __________________________________________________________________________|             
   Lymph Node, Mesenteric                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Ectasia                              |                   3                                                      |             
      Fibrosis                             |                                                                          |             
                                            __________________________________________________________________________|             
   Spleen                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrosis                             |       2           2                             2        3  3        1   |             
      Hematopoietic Cell Proliferation     |                                                                          |             
      Necrosis                             |                                                                          |             
                                            __________________________________________________________________________|             
   Thymus                                  | +  M  +  +  +  +  +  +  M  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 INTEGUMENTARY SYSTEM                      |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Mammary Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Cystic                  |                2        1        2                    1                  |             
                                            __________________________________________________________________________|             
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hyperplasia, Basal Cell              |                                                                          |             
      Inflammation, Suppurative            |                                                 3                        |             
      Pinna, Ulcer                         |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 MUSCULOSKELETAL SYSTEM                    |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Fibrous Osteodystrophy               | 3  3     4  2  3     4  3  2        3  2  2  3  3  4     3  3  3  4     2|             
      Osteopetrosis                        |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM                            |                                                                          |             
                                           |                                                                          |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  62                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 _____________________________________________________________________________________________________________________              
                                           | 5| 5| 5| 5| 5| 6| 6| 6| 5| 5| 5| 4| 5| 4| 5| 5| 5| 2| 5| 5| 5| 5| 5| 5| 5|             
                             DAY ON TEST   | 3| 7| 8| 6| 7| 1| 7| 3| 8| 8| 8| 3| 3| 3| 8| 3| 8| 5| 8| 6| 8| 8| 9| 8| 9|             
                                           | 8| 2| 9| 1| 3| 0| 4| 2| 5| 8| 9| 6| 3| 7| 9| 2| 9| 4| 9| 2| 5| 5| 9| 3| 9|             
 _____________________________________________________________________________________________________________________|             
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|             
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1|             
    0.25%                                  | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7|             
                                           | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5|             
 _____________________________________________________________________________________________________________________|             
 NERVOUS SYSTEM - cont                     |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Brain                                   | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                  2                                       |             
 _____________________________________________________________________________________________________________________|             
 RESPIRATORY SYSTEM                        |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                      2                                                   |             
      Metaplasia, Osseous                  |                               2                                          |             
      Alveolar Epithelium, Hyperplasia     |                                                             2           2|             
      Alveolus, Infiltration Cellular,     |                                                                          |             
           Histiocyte                      |       1        1  1           1     1                       1            |             
      Alveolus, Inflammation, Suppurative  | 2                       2              3                                 |             
      Artery, Vein, Mineralization         | 2  2  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  1  1     1|             
      Interstitium, Inflammation, Chronic  |                                                                          |             
          Active                           |                                                 2     1                  |             
      Interstitium, Mineralization         | 3  3  1     3        2  3  1        2  3  2  3  2           2     3      |             
      Interstitium, Alveolus, Inflammation,|                                                                          |             
           Suppurative                     |                            2              2                 2     2      |             
      Perivascular, Infiltration Cellular, |                                                                          |             
           Lymphocyte                      |                                                          1               |             
                                            __________________________________________________________________________|             
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Inflammation, Chronic Active         |                               2     2           3                    2   |             
      Inflammation, Suppurative            |       1                 2        2     2                       2         |             
      Arteriole, Venule, Thrombosis        |                                                                          |             
      Nasolacrimal Duct, Inflammation,     |                                                                          |             
           Suppurative                     |    2                                                                     |             
      Respiratory Epithelium, Metaplasia,  |                                                                          |             
           Squamous                        |                                                 3                        |             
                                            __________________________________________________________________________|             
   Trachea                                 | +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
 _____________________________________________________________________________________________________________________|             
 SPECIAL SENSES SYSTEM                     |                                                                          |             
                                           |                                                                          |             
    None                                   |                                                                          |             
 _____________________________________________________________________________________________________________________|             
 URINARY SYSTEM                            |                                                                          |             
                                           |                                                                          |             
                                            __________________________________________________________________________|             
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Cyst                                 |                3                          3                    3        3|             
      Nephropathy, Chronic                 | 4  4  4  4  4  4  3  4  4  4  3  3  4  4  4  4  4  4  3  4  4  4  4  3  4|             
      Renal Tubule, Hyperplasia            |       2                 1              4                                 |             
                                            __________________________________________________________________________|             
   Urinary Bladder                         | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|             
      Hemorrhage                           |                                  4                                       |             
 _____________________________________________________________________________________________________________________|             
                                                             Page  63                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 5| 6| 6| 5| 4| 5| 5| 5| 6| 5| 5| 5| 5| 5| 5| 6| 6| 3| 5| 5| 5| 5| 5| 5|            |
                             DAY ON TEST   | 4| 9| 4| 0| 8| 3| 6| 8| 6| 1| 4| 3| 1| 8| 2| 6| 2| 1| 8| 2| 5| 4| 8| 5| 0|            |
                                           | 8| 6| 1| 3| 9| 7| 0| 1| 1| 9| 2| 7| 7| 3| 9| 9| 6| 9| 0| 2| 6| 4| 9| 9| 5|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|  46        |
      Mineralization                       |    2                                            2                        |      2  2.0|
      Muscularis, Mineralization           |                                                                      2   |      1  2.0|
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|  47        |
      Parasite Metazoan                    |                                                                          |      2     |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|  47        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|  45        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  A  +  +  +  +  +  +|  46        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Basophilic Focus                     |    X        X                          X                 X               |      6     |
      Clear Cell Focus                     |                                                                          |      1     |
      Eosinophilic Focus                   |                                                                          |      2     |
      Hepatodiaphragmatic Nodule           |                                     X           X                        |      3     |
      Inflammation, Chronic                |    2  1  1  1                                1     2     1  1  1  2     1|     24  1.3|
      Mixed Cell Focus                     |                                                                          |      1     |
      Pigmentation, Hemosiderin            |    1  1  2  1     1                          1     2     1  1     1     1|     19  1.2|
      Bile Duct, Hyperplasia               | 1  1  2  2  1  2  3  1  1  2  2  1  1     1  1  1  1  1  1  1     2  2  1|     44  1.5|
      Hepatocyte, Degeneration, Cystic     |    2  2     1              1     2  1  1     1     1              2      |     18  1.5|
      Hepatocyte, Necrosis                 |             2                    3     2              3                  |     10  2.2|
      Hepatocyte, Vacuolization Cytoplasmic| 3  3  2  2  2        3  2        2  2  2  3  2  3  2     3  2  2  1  3  1|     43  2.3|
      Hepatocyte, Centrilobular,           |                                                                          |            |
          Hypertrophy                      | 2  3  1  2  2        3  3     3     3  3  3  2  3  3     2  3  3  3  3   |     40  2.4|
                                            __________________________________________________________________________|____________|
   Mesentery                               |                         +                    +                           |   3        |
      Angiectasis                          |                         3                                                |      1  3.0|
      Inflammation, Chronic Active         |                         3                                                |      1  3.0|
      Artery, Inflammation, Chronic Active |                                              3                           |      1  3.0|
      Artery, Mineralization               |                                              3                           |      1  3.0|
      Artery, Necrosis, Fibrinoid          |                                              3                           |      1  3.0|
                                            __________________________________________________________________________|____________|
   Pancreas                                | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Acinus, Atrophy                      |          1           1  1                                         1     1|      8  1.1|
      Acinus, Hypertrophy                  |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Inflammation, Chronic Active         |                                                                          |      1  4.0|
      Mineralization                       |    2                 2           3  2  2        2                    1   |     12  1.8|
      Epithelium, Hyperplasia              |       3  3  2           2  2                             2  2            |     10  2.3|
      Epithelium, Inflammation, Chronic    |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  64                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 5| 6| 6| 5| 4| 5| 5| 5| 6| 5| 5| 5| 5| 5| 5| 6| 6| 3| 5| 5| 5| 5| 5| 5|            |
                             DAY ON TEST   | 4| 9| 4| 0| 8| 3| 6| 8| 6| 1| 4| 3| 1| 8| 2| 6| 2| 1| 8| 2| 5| 4| 8| 5| 0|            |
                                           | 8| 6| 1| 3| 9| 7| 0| 1| 1| 9| 2| 7| 7| 3| 9| 9| 6| 9| 0| 2| 6| 4| 9| 9| 5|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM - cont                  |                                                                          |            |
                                           |                                                                          |            |
          Active                           |       3  3  3           2  2                             2  2            |      9  2.3|
      Epithelium, Ulcer                    |       4  4  4           3                                4  4            |      8  3.9|
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Mineralization                       |    3  2              3  3     3  3  3  2  3  3  3  1     2  3     3  3  2|     36  2.6|
      Epithelium, Necrosis                 |       3                                                                  |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Blood Vessel                            | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                                          |      1  4.0|
      Necrosis, Fibrinoid                  |                                                                          |      1  2.0|
      Aorta, Mineralization                | 3  4                 4           3  3  4  3  3  3  1     2  3     4  4  2|     31  3.0|
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cardiomyopathy, Chronic              | 3  3  2  1  2     2  2  3  1  2  3  2  3  2  3  3  2  2  2  1  1  3  2  2|     48  2.3|
      Mineralization                       | 2  2                 3           3  2           2                    2   |     15  2.1|
      Atrium, Thrombosis                   |                                  4                    2                  |      2  3.0|
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Degeneration, Fatty                  |          3     2  2     1                                2  1           1|     12  1.6|
      Hyperplasia                          |                            2                    2                        |      6  1.8|
      Mineralization                       |                                                                          |      1  3.0|
      Necrosis                             |                                                                          |      1  2.0|
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |             1  2  1  2  2  2           2  1  2     2        2     2     2|     29  1.7|
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          | 2  3  2  3  3        3  3     2  3  3  3  2  3  3  3     2  2     3  3  2|     40  2.8|
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Craniopharyngeal Duct, Cyst          |                                                                          |      1  2.0|
      Pars Distalis, Cyst                  |       1                          1                                       |      4  1.8|
      Pars Distalis, Hyperplasia           |          2                                               2  2        2   |      7  2.0|
      Pars Intermedia, Cyst                |                                                             1            |      1  1.0|
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      C-Cell, Hyperplasia                  |       1     2                          1                                 |      3  1.3|
      Follicle, Cyst                       |          3                                                           2   |      6  2.8|
      Follicular Cell, Hyperplasia         |                               1                                          |      1  1.0|
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Peritoneum                              |                                                                          |   1        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  65                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 5| 6| 6| 5| 4| 5| 5| 5| 6| 5| 5| 5| 5| 5| 5| 6| 6| 3| 5| 5| 5| 5| 5| 5|            |
                             DAY ON TEST   | 4| 9| 4| 0| 8| 3| 6| 8| 6| 1| 4| 3| 1| 8| 2| 6| 2| 1| 8| 2| 5| 4| 8| 5| 0|            |
                                           | 8| 6| 1| 3| 9| 7| 0| 1| 1| 9| 2| 7| 7| 3| 9| 9| 6| 9| 0| 2| 6| 4| 9| 9| 5|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 GENERAL BODY SYSTEM - cont                |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Coagulating Gland                       |                                                    +                     |   1        |
      Inflammation, Chronic Active         |                                                    3                     |      1  3.0|
                                            __________________________________________________________________________|____________|
   Epididymis                              | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Granuloma Sperm                      |                                                                          |      1  2.0|
      Mineralization                       |                                                 3                        |      4  3.0|
      Necrosis                             |                                                                          |      1  4.0|
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hyperplasia                          |                      2                                         2         |      4  2.8|
      Inflammation, Chronic Active         |    2  2  2     2  2     2  2  2        1  1  1  2  2  1  1  1  2  2  1  2|     45  1.7|
                                            __________________________________________________________________________|____________|
   Prostate                                | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Inflammation, Chronic Active         |    2  2  2  2     2     3        2  1  1  1     2  2     1  1        2   |     30  1.8|
      Mineralization                       |                                                                          |      2  1.5|
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Atrophy                              |                      3                       3                           |      2  3.0|
      Mineralization                       |    2                 3                 3        3                    2   |      8  2.6|
                                            __________________________________________________________________________|____________|
   Testes                                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Germinal Epithelium, Degeneration    |                   2  4                                                   |      3  2.3|
      Interstitial Cell, Hyperplasia       |             1  1  1  2                                                   |     11  1.3|
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Atrophy                              |                                                                          |      1  4.0|
      Hyperplasia                          |                4  4        4  4                             3  4         |     12  3.8|
      Myelofibrosis                        |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Lymph Node                              |                +  +        +  +                                          |  10        |
      Renal, Ectasia                       |                               3                                          |      3  2.3|
      Renal, Erythrophagocytosis           |                                                                          |      1  3.0|
      Renal, Pigmentation, Hemosiderin     |                   2                                                      |      2  1.5|
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Ectasia                              |                                           2                              |      2  2.5|
      Fibrosis                             |       2                                                                  |      1  2.0|
                                            __________________________________________________________________________|____________|
   Spleen                                  | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Fibrosis                             |             3           3     3                 2  4  1                  |     12  2.4|
      Hematopoietic Cell Proliferation     |                                                          2               |      1  2.0|
      Necrosis                             |                            4                                             |      1  4.0|
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  46        |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  66                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 5| 6| 6| 5| 4| 5| 5| 5| 6| 5| 5| 5| 5| 5| 5| 6| 6| 3| 5| 5| 5| 5| 5| 5|            |
                             DAY ON TEST   | 4| 9| 4| 0| 8| 3| 6| 8| 6| 1| 4| 3| 1| 8| 2| 6| 2| 1| 8| 2| 5| 4| 8| 5| 0|            |
                                           | 8| 6| 1| 3| 9| 7| 0| 1| 1| 9| 2| 7| 7| 3| 9| 9| 6| 9| 0| 2| 6| 4| 9| 9| 5|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | M  +  +  +  +  M  +  +  +  +  +  +  +  +  M  +  +  +  +  +  +  +  +  +  +|  47        |
      Hyperplasia, Cystic                  |                            1                 1                           |      6  1.3|
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Hyperplasia, Basal Cell              |                                           2                              |      1  2.0|
      Inflammation, Suppurative            |                                                                          |      1  3.0|
      Pinna, Ulcer                         |                                           3                              |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Fibrous Osteodystrophy               | 3  3  2              4  4     2  3  4  3  3  4  4  4     4  3     4  4  3|     37  3.2|
      Osteopetrosis                        |                                                       3                  |      1  3.0|
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
      Hemorrhage                           |                                                                          |      1  2.0|
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |                                                                1        1|      3  1.3|
      Metaplasia, Osseous                  |                   1                                                      |      2  1.5|
      Alveolar Epithelium, Hyperplasia     |       3                                                           3      |      4  2.5|
      Alveolus, Infiltration Cellular,     |                                                                          |            |
           Histiocyte                      |          1  1                 1  1              1        1  1  1  1      |     15  1.0|
      Alveolus, Inflammation, Suppurative  |                                  2                                       |      4  2.3|
      Artery, Vein, Mineralization         | 1  2     1  1  1  1  2  1     1  2  2  1  2  1  1  1  1  1        2  1  1|     45  1.2|
      Interstitium, Inflammation, Chronic  |                                                                          |            |
          Active                           |                                                                          |      2  1.5|
      Interstitium, Mineralization         | 3  2                 3           2  2  3  3  3  3                 3  2   |     25  2.5|
      Interstitium, Alveolus, Inflammation,|                                                                          |            |
           Suppurative                     |                                                                   2      |      5  2.0|
      Perivascular, Infiltration Cellular, |                                                                          |            |
           Lymphocyte                      |                                                                          |      1  1.0|
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Inflammation, Chronic Active         |             3     3                 2        3              1            |      9  2.3|
      Inflammation, Suppurative            |                                  3     3                 2              2|      9  2.1|
      Arteriole, Venule, Thrombosis        |                      4                                                   |      1  4.0|
      Nasolacrimal Duct, Inflammation,     |                                                                          |            |
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  67                                                               
NTP Experiment-Test: 88035-05                  NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL                         Report: PEIRPT09
Study Type: CHRONIC                                             PRIMACLONE                                        Date: 10/01/96  
Route: DOSED FEED                                                                                                 Time: 10:48:28  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 5| 5| 6| 6| 5| 4| 5| 5| 5| 6| 5| 5| 5| 5| 5| 5| 6| 6| 3| 5| 5| 5| 5| 5| 5|            |
                             DAY ON TEST   | 4| 9| 4| 0| 8| 3| 6| 8| 6| 1| 4| 3| 1| 8| 2| 6| 2| 1| 8| 2| 5| 4| 8| 5| 0|            |
                                           | 8| 6| 1| 3| 9| 7| 0| 1| 1| 9| 2| 7| 7| 3| 9| 9| 6| 9| 0| 2| 6| 4| 9| 9| 5|      T (*) |
 _____________________________________________________________________________________________________________________|            |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      O     |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|      T     |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2|      A     |
    0.25%                                  | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0|      L     |
                                           | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0|            |
 __________________________________________________________________________________________________________________________________ 
 RESPIRATORY SYSTEM - cont                 |                                                                          |            |
                                           |                                                                          |            |
           Suppurative                     |                                        2                                 |      2  2.0|
      Respiratory Epithelium, Metaplasia,  |                                                                          |            |
           Squamous                        |                                                                          |      1  3.0|
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  49        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  50        |
      Cyst                                 |                         2           2     2                 4     3      |      9  2.8|
      Nephropathy, Chronic                 | 4  4  4  4  4  2  3  4  4  3  4  4  4  4  4  4  4  4  2  4  4  3  4  4  4|     50  3.8|
      Renal Tubule, Hyperplasia            |       3                 4     2        2  2  1                          4|     10  2.5|
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | M  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +  +|  48        |
      Hemorrhage                           |                                                                          |      1  4.0|
 __________________________________________________________________________________________________________________________________ 
  * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade                         
  + : Tissue examined microscopically                M : Missing tissue                        1-4 : Lesion qualified as:           
  X : Lesion present but not qualified               A : Autolysis precludes examination               1) Minimal  3) Moderate      
  I : Insufficient tissue                        BLANK : Not examined                                  2) Mild     4) Marked        
                                                             Page  68                                                               
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                             ----------              END OF REPORT             ----------                                           
                             ------------------------------------------------------------