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TDMS Study 05214-01 Pathology Tables

NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97
Route: GAVAGE                                                                                                     Time: 19:52:05

                                                  65 WEEK SCHEDULED SACRIFICE




       Facility:  TSI Mason Research

       Chemical CAS #:  1972-08-3

       Lock Date:  06/17/92

       Cage Range:  All

       Reasons For Removal:    25017 Scheduled Sacrifice

       Removal Date Range:     03/06/90 - 03/13/90

       Treatment Groups:       Include All


































Note:  Animals arranged according to CID number

                                                              Page   1


NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 4| 5| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 3| 3| 3| 3|                                                              |     A      |
    0                                      | 0| 1| 4| 5|                                                              |     L      |
    MG/KG                                  | 0| 5| 7| 2|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +                                                               |   4        |
      Pars Distalis, Adenoma               |       X                                                                  |          1 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Vagina                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 4| 5| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 3| 3| 3| 3|                                                              |     A      |
    0                                      | 0| 1| 4| 5|                                                              |     L      |
    MG/KG                                  | 0| 5| 7| 2|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |    +                                                                     |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 4| 5| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 3| 3| 4| 4|                                                              |     A      |
    12.5                                   | 8| 9| 1| 1|                                                              |     L      |
    MG/KG                                  | 6| 3| 1| 2|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Vagina                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 4| 5| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 3| 3| 4| 4|                                                              |     A      |
    12.5                                   | 8| 9| 1| 1|                                                              |     L      |
    MG/KG                                  | 6| 3| 1| 2|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 5| 4| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 4| 4| 4| 4|                                                              |     A      |
    25                                     | 2| 4| 5| 7|                                                              |     L      |
    MG/KG                                  | 5| 5| 1| 0|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Mesentery                               |       +                                                                  |   1        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Vagina                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              | +                                                                        |   1        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 5| 4| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 4| 4| 4| 4|                                                              |     A      |
    25                                     | 2| 4| 5| 7|                                                              |     L      |
    MG/KG                                  | 5| 5| 1| 0|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  M                                                               |   3        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Eye                                     |          +                                                               |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 5| 4| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 4| 5| 5| 5|                                                              |     A      |
    50                                     | 8| 0| 0| 1|                                                              |     L      |
    MG/KG                                  | 1| 0| 3| 8|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Clitoral Gland                          | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Ovary                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Uterus                                  | +  +  +  +                                                               |   4        |
      Polyp Stromal                        | X                                                                        |          1 |
                                            __________________________________________________________________________|____________|
   Vagina                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4|                                                              |            |
                             DAY ON TEST   | 5| 5| 5| 5|                                                              |            |
                                           | 5| 5| 4| 4|                                                              |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0|                                                              |     O      |
   FISCHER 344 RATS FEMALE                 | 0| 0| 0| 0|                                                              |     T      |
                               ANIMAL ID   | 4| 5| 5| 5|                                                              |     A      |
    50                                     | 8| 0| 0| 1|                                                              |     L      |
    MG/KG                                  | 1| 0| 3| 8|                                                              |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +                                                               |   4        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +                                                               |   4        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +                                                               |   4        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4| 4|                                                  |            |
                             DAY ON TEST   | 5| 4| 5| 5| 5| 5| 4| 5|                                                  |            |
                                           | 1| 9| 2| 1| 0| 2| 9| 0|                                                  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0|                                                  |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0|                                                  |     T      |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0|                                                  |     A      |
    0                                      | 0| 1| 1| 1| 2| 5| 6| 7|                                                  |     L      |
    MG/KG                                  | 4| 0| 1| 5| 1| 4| 9| 9|                                                  |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  M  +  +  +                                                   |   7        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +  +                                                   |   8        |
      Pars Distalis, Adenoma               |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +  +                                                   |   8        |
      Bilateral, Interstitial Cell, Adenoma|          X  X  X     X                                                   |          4 |
      Interstitial Cell, Adenoma           | X     X           X                                                      |          3 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +  +                                                   |   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: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4| 4|                                                  |            |
                             DAY ON TEST   | 5| 4| 5| 5| 5| 5| 4| 5|                                                  |            |
                                           | 1| 9| 2| 1| 0| 2| 9| 0|                                                  |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0| 0|                                                  |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0| 0|                                                  |     T      |
                               ANIMAL ID   | 0| 0| 0| 0| 0| 0| 0| 0|                                                  |     A      |
    0                                      | 0| 1| 1| 1| 2| 5| 6| 7|                                                  |     L      |
    MG/KG                                  | 4| 0| 1| 5| 1| 4| 9| 9|                                                  |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  M  +  +                                                   |   7        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | M  M  +  +  +  +  +  +                                                   |   6        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +     +  +  +  +                                                   |   7        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +  +                                                   |   8        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +  +                                                   |   8        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +  +                                                   |   8        |
 __________________________________________________________________________________________________________________________________ 
 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                                                               
NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4|                                                     |            |
                             DAY ON TEST   | 5| 4| 5| 5| 5| 4| 5|                                                     |            |
                                           | 0| 9| 2| 1| 0| 9| 0|                                                     |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0|                                                     |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0|                                                     |     T      |
                               ANIMAL ID   | 0| 1| 1| 1| 1| 1| 1|                                                     |     A      |
    12.5                                   | 9| 0| 2| 2| 2| 3| 3|                                                     |     L      |
    MG/KG                                  | 8| 3| 0| 2| 3| 3| 5|                                                     |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +                                                      |   7        |
      Hepatocellular Adenoma               |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Mesentery                               |       +     +                                                            |   2        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +                                                      |   7        |
      Pars Distalis, Adenoma               |       X                                                                  |          1 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +                                                      |   7        |
      C-Cell, Adenoma                      |                   X                                                      |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +                                                      |   7        |
      Interstitial Cell, Adenoma           |                   X                                                      |          1 |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC 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  12                                                               
NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4|                                                     |            |
                             DAY ON TEST   | 5| 4| 5| 5| 5| 4| 5|                                                     |            |
                                           | 0| 9| 2| 1| 0| 9| 0|                                                     |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0|                                                     |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0|                                                     |     T      |
                               ANIMAL ID   | 0| 1| 1| 1| 1| 1| 1|                                                     |     A      |
    12.5                                   | 9| 0| 2| 2| 2| 3| 3|                                                     |     L      |
    MG/KG                                  | 8| 3| 0| 2| 3| 3| 5|                                                     |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |          +                                                               |   1        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | M  +  +  +  +  +  +                                                      |   6        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +                                                      |   7        |
      Alveolar/Bronchiolar Adenoma         |    X                                                                     |          1 |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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  13                                                               
NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4|                                                     |            |
                             DAY ON TEST   | 5| 5| 5| 4| 4| 5| 5|                                                     |            |
                                           | 2| 1| 1| 9| 9| 0| 0|                                                     |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0|                                                     |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0|                                                     |     T      |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1|                                                     |     A      |
    25                                     | 4| 6| 6| 7| 8| 9| 9|                                                     |     L      |
    MG/KG                                  | 7| 4| 9| 5| 0| 3| 5|                                                     |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Mesentery                               |             +                                                            |   1        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +                                                      |   7        |
      Pars Distalis, Adenoma               |                   X                                                      |          1 |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +                                                      |   7        |
      C-Cell, Adenoma                      |    X                                                                     |          1 |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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  14                                                               
NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4|                                                     |            |
                             DAY ON TEST   | 5| 5| 5| 4| 4| 5| 5|                                                     |            |
                                           | 2| 1| 1| 9| 9| 0| 0|                                                     |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0|                                                     |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0|                                                     |     T      |
                               ANIMAL ID   | 1| 1| 1| 1| 1| 1| 1|                                                     |     A      |
    25                                     | 4| 6| 6| 7| 8| 9| 9|                                                     |     L      |
    MG/KG                                  | 7| 4| 9| 5| 0| 3| 5|                                                     |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | M  +  +  +  +  +  +                                                      |   6        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  M  M  +  +  +                                                      |   5        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +  +  +                                                         |   6        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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  15                                                               
NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4|                                                     |            |
                             DAY ON TEST   | 5| 5| 5| 4| 5| 4| 5|                                                     |            |
                                           | 2| 1| 0| 9| 0| 9| 1|                                                     |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0|                                                     |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0|                                                     |     T      |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2|                                                     |     A      |
    50                                     | 1| 2| 4| 6| 6| 6| 7|                                                     |     L      |
    MG/KG                                  | 2| 7| 1| 1| 7| 8| 3|                                                     |            |
 __________________________________________________________________________________________________________________________________ 
 ALIMENTARY SYSTEM                         |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Esophagus                               | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Colon                  | +  +  +  +  +     +                                                      |   6        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Rectum                 | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Large, Cecum                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Duodenum               | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Jejunum                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Intestine Small, Ileum                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Liver                                   | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Mesentery                               |    +                                                                     |   1        |
                                            __________________________________________________________________________|____________|
   Pancreas                                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Salivary Glands                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Stomach, Forestomach                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Stomach, Glandular                      | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 CARDIOVASCULAR SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Heart                                   | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 ENDOCRINE SYSTEM                          |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Adrenal Cortex                          | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Adrenal Medulla                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Islets, Pancreatic                      | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Parathyroid Gland                       | +  +  +  M  +  +  +                                                      |   6        |
                                            __________________________________________________________________________|____________|
   Pituitary Gland                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Thyroid Gland                           | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 GENERAL BODY SYSTEM                       |                                                                          |            |
                                           |                                                                          |            |
    None                                   |                                                                          |            |
 _____________________________________________________________________________________________________________________|            |
 GENITAL SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Epididymis                              | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Preputial Gland                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Prostate                                | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Seminal Vesicle                         | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Testes                                  | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 HEMATOPOIETIC SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone Marrow                             | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Lymph Node                              |       +                                                                  |   1        |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mandibular                  | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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  16                                                               
NTP Experiment-Test: 05214-01                        NEOPLASMS BY INDIVIDUAL ANIMAL                               Report: PEIRPT04
Study Type: CHRONIC                                 TRANS-DELTA-9-TETRAHYDROCANNABINOL                            Date: 03/19/97  
Route: GAVAGE                                                                                                     Time: 19:52:05  
                                                                                                                                    
 __________________________________________________________________________________________________________________________________ 
                                           | 4| 4| 4| 4| 4| 4| 4|                                                     |            |
                             DAY ON TEST   | 5| 5| 5| 4| 5| 4| 5|                                                     |            |
                                           | 2| 1| 0| 9| 0| 9| 1|                                                     |            |
 _____________________________________________________________________________________________________________________|     T (*)  |
                                           | 0| 0| 0| 0| 0| 0| 0|                                                     |     O      |
   FISCHER 344 RATS MALE                   | 0| 0| 0| 0| 0| 0| 0|                                                     |     T      |
                               ANIMAL ID   | 2| 2| 2| 2| 2| 2| 2|                                                     |     A      |
    50                                     | 1| 2| 4| 6| 6| 6| 7|                                                     |     L      |
    MG/KG                                  | 2| 7| 1| 1| 7| 8| 3|                                                     |            |
 __________________________________________________________________________________________________________________________________ 
 HEMATOPOIETIC SYSTEM - cont               |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lymph Node, Mesenteric                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Spleen                                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Thymus                                  | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 INTEGUMENTARY SYSTEM                      |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Mammary Gland                           | +  +  +  +  +  +  M                                                      |   6        |
                                            __________________________________________________________________________|____________|
   Skin                                    | +  +  +  +  +  +  +                                                      |   7        |
      Subcutaneous Tissue, Fibroma         |          X                                                               |          1 |
 _____________________________________________________________________________________________________________________|            |
 MUSCULOSKELETAL SYSTEM                    |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Bone                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Skeletal Muscle                         | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 NERVOUS SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Brain                                   | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Peripheral Nerve                        | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Spinal Cord                             | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 RESPIRATORY SYSTEM                        |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Lung                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Nose                                    | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Trachea                                 | +  +  +  +  +  +  +                                                      |   7        |
 _____________________________________________________________________________________________________________________|            |
 SPECIAL SENSES SYSTEM                     |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Harderian Gland                         |    +                                                                     |   1        |
                                            __________________________________________________________________________|____________|
   Zymbal's Gland                          | +                                                                        |   1        |
 _____________________________________________________________________________________________________________________|            |
 URINARY SYSTEM                            |                                                                          |            |
                                           |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Kidney                                  | +  +  +  +  +  +  +                                                      |   7        |
                                            __________________________________________________________________________|____________|
   Urinary Bladder                         | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 
 SYSTEMIC LESIONS                          |                                                                          |            |
                                            __________________________________________________________________________|____________|
   Multiple Organs                         | +  +  +  +  +  +  +                                                      |   7        |
 __________________________________________________________________________________________________________________________________ 

                         * : 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                  

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