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TDMS Study 96007-04 Pathology Tables

NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03
Route: GAVAGE                                                                                                     Time: 10:40:35

                                                      53 WEEK SSAC/FINAL#1




       Facility:  Battelle Columbus Laboratory

       Chemical CAS #:  TEFDIOXINMIX

       Lock Date:  09/12/01

       Cage Range:  All

       Reasons For Removal:    25017 Scheduled Sacrifice

       Removal Date Range:     06/16/99 - 06/19/99

       Treatment Groups:       Include 001    TERT.MIXCONTROL
                               Include 002    TERT.MIXTEQ=10
                               Include 003    TERT.MIXTEQ=22
                               Include 004    TERT.MIXTEQ=46
                               Include 005    TERT.MIXTEQ=100






























Note:  Animals arranged according to CID number

                                                              Page   1


NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 7| 7| 6| 6| 6| 6| 6| 7| 6| 6| 6| 7| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 1| 1| 3| 3| 3| 3| 4| 4| 5| 5| 5| 7| 7|                                   |     L      |
    CONTROL                                | 2| 4| 6| 7| 8| 9| 0| 8| 1| 3| 5| 1| 5|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Liver                                   |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Pancreas                                |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      |       +  +  +  +  +     +  +  +                                          |   8        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           |       +  +  +  +  +     +  +  +                                          |   8        |
      C-Cell, Adenoma                      |                   X        X                                             |          2 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Ovary                                   |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Uterus                                  |       +  +  +  +  +     +  +  +                                          |   8        |
 _____________________________________________________________________________________________________________________|____________|
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                             Page   2                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 7| 7| 6| 6| 6| 6| 6| 7| 6| 6| 6| 7| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 1| 1| 3| 3| 3| 3| 4| 4| 5| 5| 5| 7| 7|                                   |     L      |
    CONTROL                                | 2| 4| 6| 7| 8| 9| 0| 8| 1| 3| 5| 1| 5|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Vagina                                  |       +  +  +  +  +     +  +  +                                          |   8        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Spleen                                  |       +  +  +  +  +     +  +  +                                          |   8        |
                                           |__________________________________________________________________________|____________|
   Thymus                                  |       +  +  +  +  +     +  +  +                                          |   8        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           |       +  +  +  +  +     +  +  +                                          |   8        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    |       +  +  +  +  +     +  +  +                                          |   8        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|____________|
                                           |__________________________________________________________________________|____________|
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |       +  +  +  +  +     +  +  +                                          |   8        |
 __________________________________________________________________________________________________________________________________ 
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                             Page   3                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 7| 6| 6| 6| 6| 6| 7| 7| 7| 6| 6| 6| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 1| 3| 3| 3| 3| 3| 3| 4| 5| 5| 5| 5| 9|                                   |     L      |
    TEQ=10                                 | 8| 1| 2| 3| 4| 5| 8| 2| 4| 6| 7| 9| 7|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Liver                                   |    +  +  +  +  +           +  +  +                                       |   8        |
                                           |__________________________________________________________________________|____________|
   Pancreas                                |    +  +  +  +  +           +  +  +                                       |   8        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          |    +  +  +  +  +           +  +  +                                       |   8        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      |    +  +  +  +  +           +  +  +                                       |   8        |
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           |    +  +  +  +  +           +  +  +                                       |   8        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Ovary                                   |    +  +  +  +  +           +  +  +                                       |   8        |
                                           |__________________________________________________________________________|____________|
   Uterus                                  |    +  +  +  +  +           +  +  +                                       |   8        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Thymus                                  |    +  +  +  +  +           +  +  +                                       |   8        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           |             +                                                            |   1        |
      Fibroadenoma                         |             X                                                            |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|____________|
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                             Page   4                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 7| 6| 6| 6| 6| 6| 7| 7| 7| 6| 6| 6| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 1| 3| 3| 3| 3| 3| 3| 4| 5| 5| 5| 5| 9|                                   |     L      |
    TEQ=10                                 | 8| 1| 2| 3| 4| 5| 8| 2| 4| 6| 7| 9| 7|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 NERVOUS SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    |    +  +  +  +  +           +  +  +                                       |   8        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|____________|
                                           |__________________________________________________________________________|____________|
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |    +  +  +  +  +           +  +  +                                       |   8        |
 __________________________________________________________________________________________________________________________________ 
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   5                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 6| 6| 6| 7| 7| 6| 6| 6| 6| 6| 7| 7| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 0| 0| 1| 1| 1| 3| 3| 3| 3| 3| 5| 7| 9|                                   |     L      |
    TEQ=22                                 | 6| 8| 0| 1| 5| 1| 2| 3| 4| 5| 3| 7| 6|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +        +  +  +  +  +                                             |   8        |
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +        +  +  +  +  +                                             |   8        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +        +  +  +  +  +                                             |   8        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +        +  +  +  +  +                                             |   8        |
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +        +  +  +  +  +                                             |   8        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Ovary                                   | +  +  +        +  +  +  +  +                                             |   8        |
                                           |__________________________________________________________________________|____________|
   Uterus                                  | +  +  +        +  +  +  +  +                                             |   8        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  +  +        +  +  +  +  +                                             |   8        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           |    +                                                                     |   1        |
      Fibroadenoma                         |    X                                                                     |          1 |
 _____________________________________________________________________________________________________________________|____________|
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                             Page   6                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 6| 6| 6| 7| 7| 6| 6| 6| 6| 6| 7| 7| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 0| 0| 1| 1| 1| 3| 3| 3| 3| 3| 5| 7| 9|                                   |     L      |
    TEQ=22                                 | 6| 8| 0| 1| 5| 1| 2| 3| 4| 5| 3| 7| 6|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 INTEGUMENTARY SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Skin                                    |                         +                                                |   1        |
      Subcutaneous Tissue, Fibrosarcoma    |                         X                                                |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +        +  +  +  +  +                                             |   8        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  |    +                                                                     |   1        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +        +  +  +  +  +                                             |   8        |
 __________________________________________________________________________________________________________________________________ 
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   7                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 7| 7| 7| 7| 6| 6| 6| 6| 6| 7| 6| 6| 6|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 3| 3| 3| 4| 6| 6| 6| 6| 7| 7| 9| 9| 9|                                   |     L      |
    TEQ=46                                 | 2| 6| 8| 2| 6| 7| 8| 9| 0| 1| 6| 7| 8|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Liver                                   |             +  +  +  +  +     +  +  +                                    |   8        |
                                           |__________________________________________________________________________|____________|
   Pancreas                                |             +  +  +  +  +     +  +  +                                    |   8        |
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      |                         +                                                |   1        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          |             +  +  +  +  +     +  +  +                                    |   8        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      |             +  +  +  +  +     +  +  +                                    |   8        |
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           |             +  +  +  +  +     +  +  +                                    |   8        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Ovary                                   |             +  +  +  +  +     +  +  +                                    |   8        |
                                           |__________________________________________________________________________|____________|
   Uterus                                  |             +  +  +  +  +     +  +  +                                    |   8        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Thymus                                  |             +  +  +  +  +     +  +  +                                    |   8        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                             Page   8                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 7| 7| 7| 7| 6| 6| 6| 6| 6| 7| 6| 6| 6|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 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|                                   |     A      |
    TERT.MIX                               | 3| 3| 3| 4| 6| 6| 6| 6| 7| 7| 9| 9| 9|                                   |     L      |
    TEQ=46                                 | 2| 6| 8| 2| 6| 7| 8| 9| 0| 1| 6| 7| 8|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 INTEGUMENTARY SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
   Mammary Gland                           |                         +                                                |   1        |
      Fibroadenoma                         |                         X                                                |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    |             +  +  +  +  +     +  +  +                                    |   8        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Kidney                                  |                               +                                          |   1        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         |             +  +  +  +  +     +  +  +                                    |   8        |
 __________________________________________________________________________________________________________________________________ 
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   9                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 6| 6| 6| 6| 6| 7| 6| 6| 6| 7| 7| 7| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     T      |
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|                                   |     A      |
    TERT.MIX                               | 0| 0| 0| 0| 0| 3| 5| 5| 5| 6| 7| 7| 9|                                   |     L      |
    TEQ=100                                | 1| 2| 3| 4| 5| 1| 7| 8| 9| 6| 3| 5| 7|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +     +  +  +                                                |   8        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +     +  +  +                                                |   8        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
 _____________________________________________________________________________________________________________________|____________|
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                                                                                                    
                                                             Page  10                                                               
                                                                                                                                   
NTP Experiment-Test: 96007-04                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04  
Study Type: CHRONIC                        TOXIC EQUIVALENCY FACTOR EVALUATION (DIOXIN MIXTURE)                   Date: 04/22/03    
Route: GAVAGE                                                                                                     Time: 10:40:35    
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3|                                   |            |
                             DAY ON TEST   | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6|                                   |            |
                                           | 6| 6| 6| 6| 6| 7| 6| 6| 6| 7| 7| 7| 7|                                   |            |
 __________________________________________|__________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     O      |
   SPRAGUE-DAWLEY RATS FEMALE              | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|                                   |     T      |
                               ANIMAL ID   | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4|                                   |     A      |
    TERT.MIX                               | 0| 0| 0| 0| 0| 3| 5| 5| 5| 6| 7| 7| 9|                                   |     L      |
    TEQ=100                                | 1| 2| 3| 4| 5| 1| 7| 8| 9| 6| 3| 5| 7|                                   |            |
 _____________________________________________________________________________________________________________________|____________|
 GENITAL SYSTEM - cont                     |                                                                          |            |
                                           |                                                                          |            |
   Vagina                                  | +  +  +  +  +     +  +  +                                                |   8        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +     +  +  +                                                |   8        |
                                           |__________________________________________________________________________|____________|
   Thymus                                  | +  I  +  +  +     +  +  M                                                |   6        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +     +  +  +                                                |   8        |
      Fibroadenoma                         | X  X                                                                     |          2 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |__________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +     +  +  +                                                |   8        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|____________|
                                           |__________________________________________________________________________|____________|
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +     +  +  +                                                |   8        |
 __________________________________________________________________________________________________________________________________ 
                                                                                                                                    
                         * : Total animals with tissue examined microscopically; total animals with tumor                           
                         + : Tissue examined microscopically                      M : Missing tissue                                
                         X : Lesion present                                       A : Autolysis precludes evaluation                
                         I : Insufficient tissue                              BLANK : Not examined microscopically                  
                                                                                                                                    
                                                             Page  11                                                               
                                                                                                                                   
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                                  ----------              END OF REPORT             ----------                                      
                                  ------------------------------------------------------------