Study Results & Research Projects

Pathology Tables for Peer Review

The National Toxicology Program

Print this page Easy Link

http://ntp.niehs.nih.gov/go/3947

NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03
Route: DOSED FEED                                                                                                 Time: 07:04:42




       Facility:  National Center for Toxicological Research

       Chemical CAS #:  129-73-7

       Lock Date:  None

       Cage Range:  All

       Reasons For Removal:    All

       Removal Date Range:     All

       Treatment Groups:       Include All




































a  Number of animals examined microscopically at site and number of animals with lesion

                                                              Page   1


NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03  
Route: DOSED FEED                                                                                                 Time: 07:04:42  
____________________________________________________________________________________________________________________________________
                                                                                                                                    
         C57BL/6N XC3H/HEN MTN-NCTR FEMALE         0 PPM        91 PPM       204 PPM      408 PPM                                   
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
DISPOSITION SUMMARY                                                                                                                 
                                                                                                                                    
  Animals Initially in Study                          48           48           48           48                                     
  Early Deaths                                                                                                                      
    Natural Death                                      7            2            2            5                                     
    Moribund                                           4            5            7            4                                     
  Survivors                                                                                                                         
    Terminal Sacrifice                                37           41           39           39                                     
                                                                                                                                    
  Animals Examined Microscopically                    47           48           47           47                                     
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 ALIMENTARY SYSTEM                                                                                                                  
                                                                                                                                    
   Gallbladder                                        (44)         (47)         (44)         (46)                                   
   Intestine Large                                    (46)         (48)         (47)         (46)                                   
   Intestine Small                                    (44)         (47)         (47)         (46)                                   
      Ileum, Sarcoma, Metastatic, Ovary                1 (2%)                                                                       
      Jejunum, Adenoma                                                                        1 (2%)                                
   Liver                                              (47)         (48)         (47)         (47)                                   
      Hemangiosarcoma                                  1 (2%)       1 (2%)                                                          
      Hepatocellular Carcinoma                                                   1 (2%)       2 (4%)                                
      Hepatocellular Adenoma                           3 (6%)       6 (13%)      4 (9%)       8 (17%)                               
      Hepatocellular Adenoma, Two                                                1 (2%)       1 (2%)                                
      Histiocytic Sarcoma                              1 (2%)       1 (2%)                    2 (4%)                                
   Pancreas                                           (45)         (48)         (47)         (45)                                   
      Sarcoma, Metastatic, Skin                                                               1 (2%)                                
      Sarcoma, Metastatic, Skeletal Muscle                          1 (2%)                                                          
   Salivary Glands                                    (47)         (48)         (47)         (47)                                   
   Stomach                                            (46)         (48)         (47)         (46)                                   
      Forestomach, Mast Cell Tumor Malignant           1 (2%)                                                                       
      Forestomach, Squamous Cell Carcinoma                                       1 (2%)                                             
      Forestomach, Squamous Cell Papilloma                          2 (4%)       1 (2%)       1 (2%)                                
      Glandular, Sarcoma, Metastatic, Skin                                                    1 (2%)                                
      Glandular, Sarcoma, Metastatic, Skeletal                                                                                      
          Muscle                                                    1 (2%)                                                          
____________________________________________________________________________________________________________________________________
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   2                                                               
                                                                                                                                   
NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03  
Route: DOSED FEED                                                                                                 Time: 07:04:42  
____________________________________________________________________________________________________________________________________
                                                                                                                                    
         C57BL/6N XC3H/HEN MTN-NCTR FEMALE         0 PPM        91 PPM       204 PPM      408 PPM                                   
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 CARDIOVASCULAR SYSTEM                                                                                                              
                                                                                                                                    
   Heart                                              (47)         (48)         (47)         (47)                                   
      Sarcoma, Metastatic, Skin                                                               1 (2%)                                
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 ENDOCRINE SYSTEM                                                                                                                   
                                                                                                                                    
   Islets, Pancreatic                                 (44)         (48)         (47)         (45)                                   
      Adenoma                                          1 (2%)                                                                       
   Pituitary Gland                                    (41)         (45)         (44)         (46)                                   
      Pars Distalis, Adenoma                           3 (7%)                    1 (2%)       2 (4%)                                
   Thyroid Gland                                      (46)         (48)         (47)         (47)                                   
      Follicular Cell, Adenoma                         1 (2%)       1 (2%)       1 (2%)                                             
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 GENERAL BODY SYSTEM                                                                                                                
                                                                                                                                    
   None                                                                                                                             
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 GENITAL SYSTEM                                                                                                                     
                                                                                                                                    
   Ovary                                              (46)         (48)         (47)         (44)                                   
      Choriocarcinoma                                                            1 (2%)                                             
      Cystadenocarcinoma                                                         1 (2%)                                             
      Cystadenoma                                                                             1 (2%)                                
      Granulosa Cell Tumor Malignant                                                          1 (2%)                                
      Histiocytic Sarcoma                              1 (2%)                                                                       
      Sarcoma                                          1 (2%)                                                                       
      Teratoma Benign                                  2 (4%)                                                                       
   Uterus                                             (46)         (48)         (47)         (46)                                   
      Hemangioma                                                    1 (2%)                                                          
      Hemangiosarcoma                                                            1 (2%)                                             
      Histiocytic Sarcoma                              1 (2%)       1 (2%)                                                          
      Leiomyoma                                        1 (2%)       1 (2%)                                                          
      Sarcoma Stromal                                  2 (4%)                                                                       
   Vagina                                             (45)         (47)         (47)         (46)                                   
      Mast Cell Tumor Malignant                        1 (2%)                                                                       
      Sarcoma, Metastatic, Skin                                                               1 (2%)                                
____________________________________________________________________________________________________________________________________
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   3                                                               
                                                                                                                                   
NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03  
Route: DOSED FEED                                                                                                 Time: 07:04:42  
____________________________________________________________________________________________________________________________________
                                                                                                                                    
         C57BL/6N XC3H/HEN MTN-NCTR FEMALE         0 PPM        91 PPM       204 PPM      408 PPM                                   
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 HEMATOPOIETIC SYSTEM                                                                                                               
                                                                                                                                    
   Bone Marrow                                        (46)         (48)         (47)         (46)                                   
      Hemangiosarcoma                                  1 (2%)                    1 (2%)                                             
      Histiocytic Sarcoma                                                                     1 (2%)                                
      Mast Cell Tumor Malignant                        1 (2%)                                                                       
   Lymph Node                                         (47)         (48)         (47)         (47)                                   
      Lumbar, Histiocytic Sarcoma                      1 (2%)                                                                       
      Mandibular, Histiocytic Sarcoma                  1 (2%)                                                                       
      Mandibular, Mast Cell Tumor Malignant            1 (2%)                                                                       
      Mesenteric, Histiocytic Sarcoma                               1 (2%)                                                          
      Mesenteric, Sarcoma, Metastatic, Skin                                                   2 (4%)                                
   Spleen                                             (45)         (48)         (47)         (45)                                   
      Hemangiosarcoma                                  2 (4%)                                                                       
   Thymus                                             (43)         (45)         (45)         (43)                                   
      Histiocytic Sarcoma                                                                     1 (2%)                                
      Mast Cell Tumor Malignant                        1 (2%)                                                                       
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 INTEGUMENTARY SYSTEM                                                                                                               
                                                                                                                                    
   Mammary Gland                                      (46)         (48)         (47)         (45)                                   
      Adenoacanthoma                                   2 (4%)                    1 (2%)                                             
      Carcinoma                                        1 (2%)       1 (2%)       1 (2%)       4 (9%)                                
      Carcinoma, Two                                                             1 (2%)                                             
   Skin                                               (46)         (48)         (45)         (45)                                   
      Fibrous Histiocytoma                                          1 (2%)                                                          
      Hemangioma                                       1 (2%)                                                                       
      Hemangiosarcoma                                  1 (2%)                                                                       
      Mast Cell Tumor Benign                                        1 (2%)                                                          
      Mast Cell Tumor Malignant                        1 (2%)                                                                       
      Sarcoma                                                       1 (2%)                    2 (4%)                                
      Tail, Hemangioma                                                           1 (2%)                                             
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 MUSCULOSKELETAL SYSTEM                                                                                                             
                                                                                                                                    
   Skeletal Muscle                                    (47)         (48)         (47)         (46)                                   
      Sarcoma                                                       1 (2%)                                                          
____________________________________________________________________________________________________________________________________
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   4                                                               
                                                                                                                                   
NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03  
Route: DOSED FEED                                                                                                 Time: 07:04:42  
____________________________________________________________________________________________________________________________________
                                                                                                                                    
         C57BL/6N XC3H/HEN MTN-NCTR FEMALE         0 PPM        91 PPM       204 PPM      408 PPM                                   
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 NERVOUS SYSTEM                                                                                                                     
                                                                                                                                    
   Brain                                              (47)         (48)         (47)         (47)                                   
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 RESPIRATORY SYSTEM                                                                                                                 
                                                                                                                                    
   Lung                                               (47)         (48)         (47)         (47)                                   
      Adenoacanthoma, Metastatic, Mammary Gland        2 (4%)                                                                       
      Alveolar/Bronchiolar Adenoma                     3 (6%)       1 (2%)       2 (4%)       1 (2%)                                
      Alveolar/Bronchiolar Carcinoma                   2 (4%)                                                                       
      Carcinoma, Metastatic, Mammary Gland                                                    1 (2%)                                
      Hepatocellular Carcinoma, Metastatic, Liver                                             1 (2%)                                
      Histiocytic Sarcoma                              1 (2%)       1 (2%)                    1 (2%)                                
      Sarcoma, Metastatic, Skin                                                               2 (4%)                                
      Sarcoma, Metastatic, Skeletal Muscle                          1 (2%)                                                          
   Nose                                               (47)         (48)         (47)         (47)                                   
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 SPECIAL SENSES SYSTEM                                                                                                              
                                                                                                                                    
   Harderian Gland                                    (47)         (48)         (47)         (47)                                   
      Adenocarcinoma                                   1 (2%)                                 1 (2%)                                
      Adenoma                                          2 (4%)       2 (4%)       4 (9%)       4 (9%)                                
      Bilateral, Adenoma                                                                      1 (2%)                                
   Zymbal's Gland                                     (47)         (47)         (46)         (47)                                   
      Mast Cell Tumor Malignant                        1 (2%)                                                                       
____________________________________________________________________________________________________________________________________
                                                                                                                                    
 URINARY SYSTEM                                                                                                                     
                                                                                                                                    
   Kidney                                             (47)         (48)         (47)         (47)                                   
      Histiocytic Sarcoma                              1 (2%)                                                                       
      Sarcoma, Metastatic, Skin                                                               1 (2%)                                
   Urinary Bladder                                    (46)         (48)         (47)         (44)                                   
      Histiocytic Sarcoma                                           1 (2%)                                                          
      Sarcoma, Metastatic, Skin                                                               1 (2%)                                
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   5                                                               
                                                                                                                                   
NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03  
Route: DOSED FEED                                                                                                 Time: 07:04:42  
____________________________________________________________________________________________________________________________________
                                                                                                                                    
         C57BL/6N XC3H/HEN MTN-NCTR FEMALE         0 PPM        91 PPM       204 PPM      408 PPM                                   
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
                                                                                                                                    
 SYSTEMIC LESIONS                                                                                                                   
                                                                                                                                    
   Multiple Organs                                   *(47)        *(48)        *(47)        *(47)                                   
      Hemangioma                                       1 (2%)                    1 (2%)                                             
      Hemangiosarcoma                                  2 (4%)       1 (2%)       1 (2%)                                             
      Lymphoma Malignant                               6 (13%)      5 (10%)     12 (26%)      6 (13%)                               
____________________________________________________________________________________________________________________________________
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
     *   Number of animals with any tissue examined microscopically                                                                 
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   6                                                               
                                                                                                                                   
NTP Experiment-Test: 93029-04  INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a)      Report: PEIRPT05
Study Type: CHRONIC                                        LEUKOMALACHITE GREEN                                   Date: 06/19/03  
Route: DOSED FEED                                                                                                 Time: 07:04:42  
____________________________________________________________________________________________________________________________________
                                                                                                                                    
         C57BL/6N XC3H/HEN MTN-NCTR FEMALE         0 PPM        91 PPM       204 PPM      408 PPM                                   
                                                                                                                                    
____________________________________________________________________________________________________________________________________
                                                                                                                                    
TUMOR SUMMARY                                                                                                                       
                                                                                                                                    
   Total Animals with Primary Neoplasms (b)            28          22          26          32                                       
     Total Primary Neoplasms                           48          30          35          41                                       
                                                                                                                                    
   Total Animals with Benign Neoplasms                 16          14          13          19                                       
     Total Benign Neoplasms                            17          15          15          20                                       
                                                                                                                                    
   Total Animals with Malignant Neoplasms              16          11          18          17                                       
     Total Malignant Neoplasms                         31          15          20          21                                       
                                                                                                                                    
   Total Animals with Metastatic Neoplasms              3           1                       4                                       
     Total Metastatic Neoplasm                          3           3                      12                                       
                                                                                                                                    
   Total Animals with Malignant Neoplasms                                                                                           
   Uncertain Primary Site                                                                                                           
                                                                                                                                    
   Total Animals with Neoplasms Uncertain-                                                                                          
   Benign or Malignant                                                                                                              
     Total Uncertain Neoplasms                                                                                                      
                                                                                                                                    
                                                                                                                                    
____________________________________________________________________________________________________________________________________
a  Number of animals examined microscopically at site and number of animals with lesion                                             
b  Primary tumors: all tumors except metastatic tumors                                                                              
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                             Page   7                                                               
                                                                                                                                   
                             ------------------------------------------------------------                                           
                             ----------              END OF REPORT             ----------                                           
                             ------------------------------------------------------------