TDMS Study 92013-05 Pathology Tables
NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 FINAL #1 RATS Facility: Southern Research Institute Chemical CAS #: 822-36-6 Lock Date: 09/13/02 Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All Page 1 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 9| 3| 3| 3| 3| | 7| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 5| 5| 5| 4| 4| 4| 7| 7| 3| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + A + + + A +| Edema | | |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + A A + + A +| |__________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + A A + + A M| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X X X X X X X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X X X X | Congestion | | Degeneration, Cystic, Focal | 1 | Eosinophilic Focus | X | Hematopoietic Cell Proliferation | 3| Hepatodiaphragmatic Nodule | X X X | Histiocytosis | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| Infiltration Cellular, Mixed Cell | | Inflammation, Chronic | 1 2 1 1 1 1 | Inflammation, Granulomatous | 1 | Mixed Cell Focus | X X | Bile Duct, Hyperplasia | 1 2 2 1 1 1 2 1 1 2 2 1 2 1 1| Hepatocyte, Fatty Change, Focal | 1 1 1 1 2 1 | Hepatocyte, Hyperplasia, Focal | 3 | Hepatocyte, Necrosis, Focal | 2 | Hepatocyte, Vacuolization Cytoplasmic| 2 3 4 2| Hepatocyte, Centrilobular, Necrosis | 3 | Oval Cell, Hyperplasia, Focal | 2 | |__________________________________________________________________________| Mesentery | + + + + + | __________________________________________|__________________________________________________________________________| Page 2 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 9| 3| 3| 3| 3| | 7| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 5| 5| 5| 4| 4| 4| 7| 7| 3| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | Inflammation, Chronic | 3 | Fat, Necrosis, Focal | 3 2 2 2 3 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + A + + + + +| Acinus, Atrophy, Diffuse | 4 | Acinus, Atrophy, Focal | 1 1 2 1 2 1 2 | Duct, Cyst, Focal, Multiple | 2 1 2 1 2 1 | |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | 3 | Ulcer | | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Erosion | 2 2 | |__________________________________________________________________________| Tooth | + | Peridontal Tissue, Inflammation | 4 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 2 1 1 1 1 1 1 1 1 1 1 2 2| Epicardium, Inflammation | 3 | Myocardium, Fibrosis, Focal | | Pericardium, Infiltration Cellular, | | Mixed Cell | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + A + + + +| Accessory Adrenal Cortical Nodule | 2 1 1 | Angiectasis | 3 3 | Cytoplasmic Alteration, Focal | 2 | Vacuolization Cytoplasmic, Focal | 2 3 | __________________________________________|__________________________________________________________________________| Page 3 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 9| 3| 3| 3| 3| | 7| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 5| 5| 5| 4| 4| 4| 7| 7| 3| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + A + + + +| Angiectasis | | Hyperplasia, Focal | 1 1 | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Pituitary Gland | + + M + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 | Pars Distalis, Angiectasis | 3 | Pars Distalis, Degeneration, Cystic, | | Focal | 1 3 2 1 2 | Pars Distalis, Hyperplasia, Focal | 2 3 | Pars Distalis, Hypertrophy, Focal | | |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + A A + + A +| C-Cell, Hyperplasia | 2 2 4 2 2 2 2 3 2 2 4 2 2 2 1 2 2 3 1 2 3| Follicle, Mineralization | | Follicular Cell, Hyperplasia, Focal | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Tissue NOS | + + +| Fibrosis, Focal | | Mediastinum, Cyst | 2| Mediastinum, Infiltration Cellular, | | Mixed Cell | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | 2 2 3 | Hyperplasia, Cystic | 3 2 2 | Inflammation, Chronic | 2 | |__________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 4 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 9| 3| 3| 3| 3| | 7| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 5| 5| 5| 4| 4| 4| 7| 7| 3| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Cyst | X X X X X | |__________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic, Granulomatous | 3 | Cervix, Hypertrophy | 3 | Endometrium, Hyperplasia, Cystic | 1 1 1 2 1 3 2 2 1| |__________________________________________________________________________| Vagina | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 3| |__________________________________________________________________________| Lymph Node | + + + + + + + + + + + A + + + +| Deep Cervical, Hemorrhage | 3| Mediastinal, Ectasia | 4 3 3 | Mediastinal, Hemorrhage | 3 3 | Mediastinal, Hyperplasia, Histiocytic| 3 3 3 | Mediastinal, Hyperplasia, Lymphoid | 3 | Mediastinal, Pigmentation | | Pancreatic, Hemorrhage | | Pancreatic, Hyperplasia, Histiocytic | 3 3 3 | Pancreatic, Hyperplasia, Plasma Cell | 3 | Pancreatic, Pigmentation | | |__________________________________________________________________________| Lymph Node, Mandibular | + M M M M M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + A + + + +| Hyperplasia, Histiocytic | 3 3 3 3 3 | |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | X X | Fibrosis, Focal | | Hematopoietic Cell Proliferation | 3 3 3| |__________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + I + I + + + I| Cyst | | __________________________________________|__________________________________________________________________________| Page 5 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 9| 3| 3| 3| 3| | 7| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 5| 5| 5| 4| 4| 4| 7| 7| 3| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | Hyperplasia, Lymphoid | 4 | Epithelial Cell, Hyperplasia | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 4 2 3 4 4 2 3 2 3 4 4 2 2 2 2 2 3 3 2 2 3 2| Fibrosis | 3 | Hyperplasia | 2 3 3 | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | | Subcutaneous Tissue, Edema | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | 3 3 1 3 3 | Hemorrhage, Focal | 2 | |__________________________________________________________________________| Peripheral Nerve | + + + + + | |__________________________________________________________________________| Spinal Cord | + + + + + | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hemorrhage, Focal | | Infiltration Cellular, Mixed Cell | 1 2 2| Inflammation, Chronic, Focal | 1 1 1 1 1 1 1 1 1 1 2 1 | Alveolar Epithelium, Hyperplasia, | | Focal | 2 2 2 2 | Interstitium, Edema | | __________________________________________|__________________________________________________________________________| Page 6 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 9| 3| 3| 3| 3| | 7| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 5| 5| 5| 4| 4| 4| 7| 7| 3| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM - cont | | Mediastinum, Edema | | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + A + + + + +| Nasolacrimal Duct, Inflammation | 2 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + + + + + + A A + + + +| Cataract | 2 | Synechia | 3 | Retina, Degeneration | 3 | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal, Histiocytic | | Inflammation | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + A + + A +| Infarct | | Nephropathy | 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| Pelvis, Dilatation | 3 | Renal Tubule, Accumulation, Hyaline | | Droplet | 2| |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + A + + + +| __________________________________________|__________________________________________________________________________ Page 7 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Edema | 3 | 1 3.0| |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + A + + + + + + + + + + + + + + + + + + +| 46 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + A + + + + + + + + + + + + + + + + + + +| 45 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Basophilic Focus | X X X X X X X X X X X X X X X X X X X X X X X| 46 | Clear Cell Focus | X X X X X X X X X X X X| 20 | Congestion | 3 3 | 2 3.0| Degeneration, Cystic, Focal | | 1 1.0| Eosinophilic Focus | | 1 | Hematopoietic Cell Proliferation | | 1 3.0| Hepatodiaphragmatic Nodule | X X | 5 | Histiocytosis | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| 40 1.0| Infiltration Cellular, Mixed Cell | 1 1 1 1 1 | 5 1.0| Inflammation, Chronic | 2 2 1 1 1 1 1 1 1 1 1| 17 1.2| Inflammation, Granulomatous | | 1 1.0| Mixed Cell Focus | X X X X X X X X| 10 | Bile Duct, Hyperplasia | 2 2 2 1 1 2 2 2 1 2 1 1 2 1 2 1| 31 1.5| Hepatocyte, Fatty Change, Focal | 1 1 1 1 1 1 2 1 2 1| 16 1.2| Hepatocyte, Hyperplasia, Focal | | 1 3.0| Hepatocyte, Necrosis, Focal | | 1 2.0| Hepatocyte, Vacuolization Cytoplasmic| 2 3 | 6 2.7| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 8 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Hepatocyte, Centrilobular, Necrosis | 3 | 2 3.0| Oval Cell, Hyperplasia, Focal | | 1 2.0| |__________________________________________________________________________|____________| Mesentery | + + + + | 9 | Inflammation, Chronic | | 1 3.0| Fat, Necrosis, Focal | 3 3 2 | 8 2.5| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Acinus, Atrophy, Diffuse | | 1 4.0| Acinus, Atrophy, Focal | 1 1 1 2 1 1 | 13 1.3| Duct, Cyst, Focal, Multiple | 2 1 1 2 | 10 1.5| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Edema | | 1 3.0| Ulcer | 1 | 1 1.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Erosion | | 2 2.0| |__________________________________________________________________________|____________| Tooth | | 1 | Peridontal Tissue, Inflammation | | 1 4.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | | 1 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 1 1 1 1 2 1 1 2 1 1 2 2 1 1 1| 30 1.3| Epicardium, Inflammation | | 1 3.0| Myocardium, Fibrosis, Focal | 2 | 1 2.0| Pericardium, Infiltration Cellular, | | | Mixed Cell | 1 | 1 1.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 9 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Accessory Adrenal Cortical Nodule | 1 1 1 1 2| 8 1.3| Angiectasis | 2 2| 4 2.5| Cytoplasmic Alteration, Focal | | 1 2.0| Vacuolization Cytoplasmic, Focal | 1 2 2 2 4 2 | 8 2.3| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + M + + + + + + +| 48 | Angiectasis | 2 | 1 2.0| Hyperplasia, Focal | | 2 1.0| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + I + + + + +| 48 | Angiectasis | 3 3 2 3 3 | 6 2.8| Pars Distalis, Angiectasis | | 1 3.0| Pars Distalis, Degeneration, Cystic, | | | Focal | 3 2 2 1 | 9 1.9| Pars Distalis, Hyperplasia, Focal | 1 1 | 4 1.8| Pars Distalis, Hypertrophy, Focal | 3 | 1 3.0| |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | C-Cell, Hyperplasia | 1 2 2 1 1 2 1 2 2 1 1 2 2 2 1 4 1 3 1 2 2 2 1 2| 45 2.0| Follicle, Mineralization | 1 1 | 2 1.0| Follicular Cell, Hyperplasia, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | |__________________________________________________________________________|____________| Tissue NOS | + + | 5 | Fibrosis, Focal | 2 | 1 2.0| Mediastinum, Cyst | | 1 2.0| Mediastinum, Infiltration Cellular, | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 10 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENERAL BODY SYSTEM - cont | | | Mixed Cell | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 2 | 4 2.3| Hyperplasia, Cystic | 3 2 2 3 | 7 2.4| Inflammation, Chronic | 2 | 2 2.0| |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | X X | 7 | |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic, Granulomatous | | 1 3.0| Cervix, Hypertrophy | | 1 3.0| Endometrium, Hyperplasia, Cystic | 2 2 2 1 2 2 1 1 1 1 2 1 1 2 2 1| 25 1.5| |__________________________________________________________________________|____________| Vagina | + | 1 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 | 3 3.0| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + +| 24 | Deep Cervical, Hemorrhage | 3 3 | 3 3.0| Mediastinal, Ectasia | | 3 3.3| Mediastinal, Hemorrhage | 3 3 3 | 5 3.0| Mediastinal, Hyperplasia, Histiocytic| 3| 4 3.0| Mediastinal, Hyperplasia, Lymphoid | | 1 3.0| Mediastinal, Pigmentation | 3 | 1 3.0| Pancreatic, Hemorrhage | 2 | 1 2.0| Pancreatic, Hyperplasia, Histiocytic | 3 3 2 | 6 2.8| Pancreatic, Hyperplasia, Plasma Cell | | 1 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 11 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Pancreatic, Pigmentation | 2 | 1 2.0| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M M M M M M M M M M M M M M M M M M M| 1 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hyperplasia, Histiocytic | 3 3 | 7 3.0| |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Spleen | X | 3 | Fibrosis, Focal | 3 | 1 3.0| Hematopoietic Cell Proliferation | 3 3 3 | 6 3.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | Cyst | 3 2 | 2 2.5| Hyperplasia, Lymphoid | | 1 4.0| Epithelial Cell, Hyperplasia | | 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Dilatation | 3 2 3 3 2 2 2 3 3 4 2 4 3 2 2| 37 2.7| Fibrosis | | 1 3.0| Hyperplasia | 2 3 2 | 6 2.5| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Ulcer | 2 | 1 2.0| Subcutaneous Tissue, Edema | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 12 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| NERVOUS SYSTEM - cont | | | Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 3 3 3 2 4 3 3| 13 2.8| Hemorrhage, Focal | | 1 2.0| |__________________________________________________________________________|____________| Peripheral Nerve | + + | 7 | |__________________________________________________________________________|____________| Spinal Cord | + + | 7 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 2 | 1 2.0| Hemorrhage, Focal | 3 | 1 3.0| Infiltration Cellular, Mixed Cell | | 3 1.7| Inflammation, Chronic, Focal | 1 1 1 2 1 1 1 1 1 1 1 1 1| 25 1.1| Alveolar Epithelium, Hyperplasia, | | | Focal | | 4 2.0| Interstitium, Edema | 2 | 1 2.0| Mediastinum, Edema | 2 | 1 2.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Nasolacrimal Duct, Inflammation | 3 | 2 2.5| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Cataract | 3 3 3 | 4 2.8| Synechia | | 1 3.0| Retina, Degeneration | 3 3 3 | 4 3.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal, Histiocytic | 1 | 1 1.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 13 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 3| 7| 7| 7| 7| 7| 7| 7| 0| 7| 7| 4| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 6| 0| 3| 3| 3| 3| 3| 3| 0| 1| 3| 3| 9| 3| 3| | | 6| 6| 6| 6| 6| 0| 7| 7| 7| 7| 7| 2| 6| 6| 6| 7| 7| 7| 0| 6| 5| 5| 8| 5| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Inflammation | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Infarct | 2 | 1 2.0| Nephropathy | 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1| 45 1.1| Pelvis, Dilatation | | 1 3.0| Renal Tubule, Accumulation, Hyaline | | | Droplet | 4 2| 3 2.7| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 14 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 4| 4| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 1| 2| 6| 5| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | 6| 6| 6| 6| 2| 1| 3| 3| 6| 6| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 1250 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + A + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X X X X X X X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X X X X X X X X X X X X| Congestion | 2 | Eosinophilic Focus | X | Hepatodiaphragmatic Nodule | X | Histiocytosis | 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 2 1 1 2 2 1| Infiltration Cellular, Mixed Cell | 1 1 1 | Inflammation, Chronic | 1 1 1 2 1 1 1 1 2 2 1 3 1 | Mixed Cell Focus | X X X X | Bile Duct, Hyperplasia | 1 1 1 1 2 2 1 2 1 2 2 2 3 2 1 1 1 1 1 2 2| Hepatocyte, Fatty Change, Focal | 1 1 1 1 2 2 1 2 2 1 2 1| Hepatocyte, Vacuolization Cytoplasmic| 3 1 2 2 2 3 2 | |__________________________________________________________________________| Mesentery | + | Fat, Necrosis, Focal | | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + A + + + + +| Acinus, Atrophy, Focal | 2 1 1 1 2 2 2| Duct, Cyst, Focal, Multiple | 2 2 1 2 2 2 2 3 2| |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 4 | __________________________________________|__________________________________________________________________________| Page 15 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 4| 4| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 1| 2| 6| 5| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | 6| 6| 6| 6| 2| 1| 3| 3| 6| 6| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 1250 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | | Ulcer | | Epithelium, Hyperplasia | | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Erosion | | Ulcer | | |__________________________________________________________________________| Tongue | + | Epithelium, Hyperplasia | | |__________________________________________________________________________| Tooth | | Malformation | | Peridontal Tissue, Inflammation | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 2 1 1 2 2 1 1 2 1 1 1 1 2 1 2 1 2 1| Inflammation, Focal, Suppurative | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 1 1 1 | Angiectasis | 2 3 | Cytoplasmic Alteration, Focal | 1 | Hematopoietic Cell Proliferation | | Vacuolization Cytoplasmic, Focal | 2 2 2 1 | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Lymphoid | | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 16 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 4| 4| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 1| 2| 6| 5| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | 6| 6| 6| 6| 2| 1| 3| 3| 6| 6| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 1250 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | |__________________________________________________________________________| Parathyroid Gland | M + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 2 2 | Cyst | X X | Hyperplasia, Focal, Histiocytic | | Pars Distalis, Angiectasis | | Pars Distalis, Degeneration, Cystic, | | Focal | 2 1 | Pars Distalis, Hyperplasia, Focal | 2| |__________________________________________________________________________| Thyroid Gland | + + + + + A A + + + + + + + + + + + + A + + + + +| C-Cell, Hyperplasia | 1 2 2 1 1 1 1 2 2 1 1 2 3 2 2 2 1 3 3 1 2| Follicle, Cyst | X | Follicle, Mineralization | 1 1 1 1| Follicular Cell, Hyperplasia, Focal | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Tissue NOS | + + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Cystic | 2 3 | Inflammation, Chronic | | |__________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | X | |__________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Endometrium, Hyperplasia, Cystic | 2 3 1 2 1 1 2 2 1 3 3 3 2 1 2 1| |__________________________________________________________________________| Vagina | | Infiltration Cellular, | | Polymorphonuclear | | __________________________________________|__________________________________________________________________________| Page 17 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 4| 4| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 1| 2| 6| 5| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | 6| 6| 6| 6| 2| 1| 3| 3| 6| 6| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 1250 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + A + + + + +| Fibrosis | | Hyperplasia, Focal, Histiocytic | 2 | Hyperplasia | | Erythroid Cell, Hyperplasia | 3 | |__________________________________________________________________________| Lymph Node | + + + | Mediastinal, Congestion | | Mediastinal, Ectasia | 3 | Mediastinal, Hemorrhage | 3 | Mediastinal, Hyperplasia, Histiocytic| | Pancreatic, Hyperplasia, Histiocytic | | |__________________________________________________________________________| Lymph Node, Mandibular | M M M M M M M M M + M M M M M M M M M M M M M M M| Ectasia | | |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + A + + + + +| |__________________________________________________________________________| Spleen | + + + M + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 3 2 | Inflammation, Granulomatous | | Stromal Hyperplasia | 3 | |__________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + M + + + + +| Dilatation | 2 3 4 2 2 3 2 | Hyperplasia | 2 | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | | Pinna, Inflammation, Chronic, Focal | | Subcutaneous Tissue, Edema | 2 | Subcutaneous Tissue, Fibrosis, Focal | | __________________________________________|__________________________________________________________________________| Page 18 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 4| 4| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 1| 2| 6| 5| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | 6| 6| 6| 6| 2| 1| 3| 3| 6| 6| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 1250 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | + | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | 3 3 | Hemorrhage, Focal | 3 | |__________________________________________________________________________| Peripheral Nerve | + | |__________________________________________________________________________| Spinal Cord | + | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 1 2 | Hyperplasia, Focal, Histiocytic | | Infiltration Cellular, Mixed Cell | 1 | Inflammation, Chronic, Focal | 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1| Alveolar Epithelium, Hyperplasia, | | Focal | 2 1 | Mediastinum, Edema | | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 1 | Inflammation, Suppurative | 1 | Nasolacrimal Duct, Inflammation | 1 2 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + + + + A A + + + + + + + A + + + + + + + + + +| Inflammation, Chronic | | Anterior Chamber, Exudate | 3 | __________________________________________|__________________________________________________________________________| Page 19 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 4| 4| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 1| 2| 6| 5| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | 6| 6| 6| 6| 2| 1| 3| 3| 6| 6| 7| 7| 7| 7| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 1250 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| SPECIAL SENSES SYSTEM - cont | | Cornea, Inflammation, Chronic | | Cornea, Necrosis, Focal | | Retina, Degeneration | 3 | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal, Histiocytic | 2 1 | Inflammation | 1 | |__________________________________________________________________________| Zymbal's Gland | + + | Cyst | 4 | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + A + + + + +| Infarct | | Mineralization, Focal | | Nephropathy | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________ Page 20 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + A + + + + + + + +| 48 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + A + + + + + + + +| 49 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + A + + + + + + + + A + + + + + + + +| 46 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + A + + + + + + + + A + + + + + + + +| 48 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + A + + + + + + + + A + + + + + + + +| 47 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + A + + + + + + + + A + + + + + + + +| 47 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Basophilic Focus | X X X X X X X X X X X X X X X X X X X X| 43 | Clear Cell Focus | X X X X X X X X X X X X X X X X| 32 | Congestion | 3 | 2 2.5| Eosinophilic Focus | X | 2 | Hepatodiaphragmatic Nodule | X X X | 4 | Histiocytosis | 1 2 2 1 1 2 2 1 2 1 1 2 2 2 1 1 1 1 1 2 2 1 1 1 1| 50 1.3| Infiltration Cellular, Mixed Cell | 2 2 | 5 1.4| Inflammation, Chronic | 1 1 1 1 2 2 1 1 1 4 2 1 3 1 1 | 28 1.5| Mixed Cell Focus | X X X | 7 | Bile Duct, Hyperplasia | 2 2 1 2 3 2 1 1 2 1 2 2 2 2 1 2 2| 38 1.6| Hepatocyte, Fatty Change, Focal | 1 2 1 1 2 1 2 2 3 3 2 2 2 1 1 1 2| 29 1.6| Hepatocyte, Vacuolization Cytoplasmic| 3 3 2 2 2 | 12 2.3| |__________________________________________________________________________|____________| Mesentery | + + + + + + | 7 | Fat, Necrosis, Focal | 2 1 3 | 3 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Acinus, Atrophy, Focal | 3 2 1 1 3 2 2 2 1 1 2 2 1 2 1| 22 1.7| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 21 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Duct, Cyst, Focal, Multiple | 2 2 3 2 1 2 1 2 3| 18 2.0| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | | 1 4.0| |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Edema | 3 | 1 3.0| Ulcer | 2 | 1 2.0| Epithelium, Hyperplasia | 2 | 1 2.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Erosion | 2 | 1 2.0| Ulcer | 2 | 1 2.0| |__________________________________________________________________________|____________| Tongue | + + + + | 5 | Epithelium, Hyperplasia | 2 | 1 2.0| |__________________________________________________________________________|____________| Tooth | + | 1 | Malformation | 2 | 1 2.0| Peridontal Tissue, Inflammation | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + | 1 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 1 1 1 2 1 3 1 2 2 2 2 2 2 2 2 1 2 1 1 1 1 2 1| 43 1.5| Inflammation, Focal, Suppurative | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Adrenal Cortical Nodule | 1 2 1 | 6 1.2| Angiectasis | | 2 2.5| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 22 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | Cytoplasmic Alteration, Focal | 1 | 2 1.0| Hematopoietic Cell Proliferation | 1 | 1 1.0| Vacuolization Cytoplasmic, Focal | 2 1 2 3 3 | 9 2.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Lymphoid | 3 | 1 3.0| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 | 4 2.3| Cyst | X X | 4 | Hyperplasia, Focal, Histiocytic | 2 | 1 2.0| Pars Distalis, Angiectasis | 1 1| 2 1.0| Pars Distalis, Degeneration, Cystic, | | | Focal | 2 3 3 4 | 6 2.5| Pars Distalis, Hyperplasia, Focal | 2 3 2 | 4 2.3| |__________________________________________________________________________|____________| Thyroid Gland | + I + + + + + A + + + + + + + + A + + + + + + + +| 44 | C-Cell, Hyperplasia | 1 1 2 1 1 2 2 1 1 1 2 2 1 2 2 2 2 1 2 4 2| 42 1.7| Follicle, Cyst | | 1 | Follicle, Mineralization | 1 1 1 | 7 1.0| Follicular Cell, Hyperplasia, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | |__________________________________________________________________________|____________| Tissue NOS | + | 3 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Cystic | 2 2 | 4 2.3| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 23 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENITAL SYSTEM - cont | | | Inflammation, Chronic | 1 2| 2 1.5| |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | X X | 3 | |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Endometrium, Hyperplasia, Cystic | 1 2 1 1 2 3 2 2 2 3 | 26 1.9| |__________________________________________________________________________|____________| Vagina | + + | 2 | Infiltration Cellular, | | | Polymorphonuclear | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + A + + + + + + + +| 48 | Fibrosis | 3 | 1 3.0| Hyperplasia, Focal, Histiocytic | | 1 2.0| Hyperplasia | 3 3 | 2 3.0| Erythroid Cell, Hyperplasia | | 1 3.0| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + | 11 | Mediastinal, Congestion | 3 | 1 3.0| Mediastinal, Ectasia | | 1 3.0| Mediastinal, Hemorrhage | 3 2 | 3 2.7| Mediastinal, Hyperplasia, Histiocytic| 3 | 1 3.0| Pancreatic, Hyperplasia, Histiocytic | 3 | 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M M + M M M M M M M M M M M + M M M M| 3 | Ectasia | 3 | 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + A + + + + + + + +| 48 | Hematopoietic Cell Proliferation | | 2 2.5| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 24 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Inflammation, Granulomatous | 3 2 3 | 3 2.7| Stromal Hyperplasia | | 1 3.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hemorrhage | | 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Dilatation | 3 2 2 3 2 2 2 2 1 | 16 2.3| Hyperplasia | 2 1| 3 1.7| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Ulcer | 3 | 1 3.0| Pinna, Inflammation, Chronic, Focal | 2 | 1 2.0| Subcutaneous Tissue, Edema | | 1 2.0| Subcutaneous Tissue, Fibrosis, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Skeletal Muscle | | 1 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 3 3 3 3 3 | 8 3.0| Hemorrhage, Focal | 3 | 2 3.0| |__________________________________________________________________________|____________| Peripheral Nerve | + + | 3 | |__________________________________________________________________________|____________| Spinal Cord | + + | 3 | _____________________________________________________________________________________________________________________| | * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 25 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 3 2 | 5 2.2| Hyperplasia, Focal, Histiocytic | 2 | 1 2.0| Infiltration Cellular, Mixed Cell | | 1 1.0| Inflammation, Chronic, Focal | 2 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 2| 40 1.2| Alveolar Epithelium, Hyperplasia, | | | Focal | 1 | 3 1.3| Mediastinum, Edema | 2 | 1 2.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | 2 | 2 1.5| Inflammation, Suppurative | 3 2 | 3 2.0| Nasolacrimal Duct, Inflammation | 3 2 2 | 5 2.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + A + + + + + + + + A + + + + + + + +| 45 | Inflammation, Chronic | 4 | 1 4.0| Anterior Chamber, Exudate | | 1 3.0| Cornea, Inflammation, Chronic | 4 | 1 4.0| Cornea, Necrosis, Focal | 4 | 1 4.0| Retina, Degeneration | | 1 3.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal, Histiocytic | 1 2 | 4 1.5| Inflammation | | 1 1.0| |__________________________________________________________________________|____________| Zymbal's Gland | + | 3 | Cyst | | 1 4.0| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 26 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 4| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 7| 0| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 5| 3| 3| 3| 3| | | 4| 6| 6| 6| 6| 6| 6| 7| 0| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 6| 7| 6| 6| 6| 6| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| A | 1250 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| URINARY SYSTEM - cont | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + A + + + + + + + +| 48 | Infarct | 2 | 1 2.0| Mineralization, Focal | 2 | 1 2.0| Nephropathy | 1 1 1 1 3 1 1 1 1 2 3 1 1 1 1 1 1 1 | 37 1.1| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 27 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + A + + + + + A + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + A + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + + + A + + + + + A A + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + A + + + + + A A + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + A + + + + + M + + + + + A A + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Ileum | + A + + + + + A + + + + + A A + + + + + + + + + +| |__________________________________________________________________________| Liver | + + + + + + + A + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X X X X X X X X X| Degeneration, Cystic, Focal | 3 | Eosinophilic Focus | X X X | Hepatodiaphragmatic Nodule | X X| Histiocytosis | 2 2 2 2 2 2 2 2 1 2 2 1 2 2 1 3 1 2 3 2 1 1 2 1| Inflammation, Chronic, Focal | 1 | Inflammation, Chronic | 3 1 2 1 2 2 1 2 2 1 1 1 2 2 1 1 1| Mixed Cell Focus | X X X X X | Thrombosis | 2 | Bile Duct, Dilatation, Focal | 3 | Bile Duct, Hyperplasia | 2 2 3 1 2 2 1 1 2 2 1 3 2 3 2 2 1 3 3 1 1| Hepatocyte, Fatty Change, Focal | 2 1 2 3 3 2 2 1 2 2 2 1 3 2 2 3| Hepatocyte, Vacuolization Cytoplasmic| 4 3 3 2 2 2 1 2 2 | Hepatocyte, Centrilobular, Necrosis | 3 | Serosa, Fibrosis | 2 | |__________________________________________________________________________| Mesentery | + + + + + + | Inflammation, Chronic | 1 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + A + + + + + + + + + + +| Acinus, Atrophy, Focal | 2 3 2 1 2 1 2 1 1 1 3 1| __________________________________________|__________________________________________________________________________| Page 28 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | Duct, Cyst, Focal, Multiple | 1 1 2 1 2 1| |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy, Focal | 2 | Inflammation, Chronic | 3 | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Diverticulum | | Edema | 3 | Inflammation | 1 3 | Ulcer | 2 | Epithelium, Hyperplasia | 2 2 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Erosion | | |__________________________________________________________________________| Tongue | + + + | Epithelium, Hyperplasia | 1 | |__________________________________________________________________________| Tooth | + | Malformation | X | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + + | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + I + + + +| Cardiomyopathy | 2 2 2 2 2 2 1 3 1 2 2 2 2 2 1 1 1| Thrombosis | 3 | Artery, Inflammation, Chronic | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 2 1 | Angiectasis | 3 | Cytoplasmic Alteration, Focal | 1 | Hemorrhage, Focal | 3 | __________________________________________|__________________________________________________________________________| Page 29 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | Vacuolization Cytoplasmic, Focal | 3 2 3 2 1 3 1 3 | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | Hyperplasia, Focal | 3 | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + A + + + + + + + + + + +| Atrophy | | |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + M + + + +| |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Cyst | X X | Pars Distalis, Angiectasis | 2 | Pars Distalis, Degeneration, Cystic, | | Focal | 2 | Pars Distalis, Hemorrhage, Focal | 2 | Pars Distalis, Hyperplasia, Focal | 1 3 3 | Pars Distalis, Hypertrophy, Focal | | |__________________________________________________________________________| Thyroid Gland | + A + + + + + A + + + + + A A + + + + + + + + + +| C-Cell, Hyperplasia | 4 2 2 2 2 1 3 2 1 1 2 1 2 1 3 2 2 2 1 2| Follicle, Degeneration, Focal | | Follicle, Mineralization | | Follicular Cell, Hyperplasia, Focal | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Tissue NOS | + + + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | 3 3 | Hyperplasia, Cystic | | Hyperplasia, Focal, Histiocytic | | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 30 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | X X X| |__________________________________________________________________________| Oviduct | + | |__________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | | Endometrium, Hyperplasia, Cystic | 1 2 1 3 2 2 1 3 | |__________________________________________________________________________| Vagina | + + + | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 3 | Hyperplasia, Focal, Histiocytic | | Hyperplasia | | |__________________________________________________________________________| Lymph Node | + + + + + + + + + + | Mediastinal, Hemorrhage | 3 3 | Mediastinal, Hyperplasia, Histiocytic| 3 | Mediastinal, Hyperplasia, Plasma Cell| 3 | Pancreatic, Hemorrhage | 3 | Pancreatic, Hyperplasia, Histiocytic | 3 3 3 3 | |__________________________________________________________________________| Lymph Node, Mandibular | M M M M M M M M M M M M M M M M M M M M M M M M M| Hyperplasia, Lymphoid | | |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 3 | Hyperplasia, Histiocytic | 3 | |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + A + + + + + + + + + +| Accessory Spleen | | Atrophy | 3 | Congestion | | Fibrosis, Focal | 3 | Inflammation, Granulomatous | 3 3 3 4 | __________________________________________|__________________________________________________________________________| Page 31 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | Capsule, Infiltration Cellular, | | Focal, Mixed Cell | 2 | |__________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Hyperplasia, Lymphoid | 2 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 1 3 3 | Hyperplasia | 2 1| |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Focal | | Epidermis, Hyperplasia, Focal | 1 | Subcutaneous Tissue, Hemorrhage, | | Focal | | Subcutaneous Tissue, Necrosis, Fatty,| | Focal | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | 3 3 3 3| Hemorrhage, Focal | 1 3 | Thalamus, Mineralization, Focal | | |__________________________________________________________________________| Peripheral Nerve | + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Spinal Cord | + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 32 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 3 | Hemorrhage, Focal | 3 3 | Inflammation, Chronic, Focal | 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1| Interstitium, Edema | | Mediastinum, Congestion | | Mediastinum, Edema | | Mediastinum, Mineralization, Focal | | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Suppurative | 2 | Nasolacrimal Duct, Inflammation | 2 2| |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + A + + + + + A + + + + + A A + A + + + + + + + +| Atrophy | 3 | Cataract | 2 | Cornea, Necrosis, Focal | 4 | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Cytoplasmic Alteration, Focal | 1 | Hyperplasia, Focal, Histiocytic | 1 1 2 | Epithelium, Hyperplasia, Focal | | |__________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + A + + + + + + + + + + + + A + + + + + + + + + +| Cyst | 2 3 | Infarct | 4 | Nephropathy | 1 1 3 1 1 1 1 1 1 1 2 1 1 1 1 3 1 1| __________________________________________|__________________________________________________________________________| Page 33 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 3| 7| 7| 7| 7| 7| 6| 5| 5| 5| 7| 7| 7| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 3| 7| 5| 8| 7| 3| 3| 3| 3| 3| 3| 3| 3| | 5| 8| 5| 5| 5| 5| 5| 3| 5| 5| 6| 6| 6| 2| 5| 1| 8| 5| 5| 5| 5| 5| 5| 5| 5| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2500 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| URINARY SYSTEM - cont | | Renal Tubule, Accumulation, Hyaline | | Droplet | 3 | |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 | Inflammation | | Transitional Epithelium, Hyperplasia | 2 | __________________________________________|__________________________________________________________________________ Page 34 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + A + + + + + + + + + + + + + + + + + A + A +| 45 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + A + + + + + + + + + + + + + + + + + A + + +| 47 | |__________________________________________________________________________|____________| Intestine Large, Cecum | A + + A + + + + + + + + + + + + + + + + + A + A +| 43 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | A + + A + + + + + + + + + + + + + + + + + A + A +| 43 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | A + + A + + + + + + + + + + I + + A + + + A + A +| 40 | |__________________________________________________________________________|____________| Intestine Small, Ileum | A + + A + + + + + + + + + + + + + + + + + A + A +| 42 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + A +| 48 | Basophilic Focus | X X X X X X X X X X X X X X X | 31 | Clear Cell Focus | X X X X X X X X X X | 23 | Degeneration, Cystic, Focal | | 1 3.0| Eosinophilic Focus | X X | 5 | Hepatodiaphragmatic Nodule | X X X X | 6 | Histiocytosis | 3 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 3 2| 48 1.9| Inflammation, Chronic, Focal | | 1 1.0| Inflammation, Chronic | 1 3 2 1 1 2 1 4 2 3 1 3 3 2 1 1 4| 34 1.8| Mixed Cell Focus | X | 6 | Thrombosis | | 1 2.0| Bile Duct, Dilatation, Focal | 2 | 2 2.5| Bile Duct, Hyperplasia | 2 2 3 3 2 2 2 1 1 1 2 3 2 2 1 1 1 3 2 2 3 2| 43 1.9| Hepatocyte, Fatty Change, Focal | 1 3 2 2 3 3 1 1 1 2 1 3 1 | 29 2.0| Hepatocyte, Vacuolization Cytoplasmic| 2 4 2 2 3 1 2 3 | 17 2.4| Hepatocyte, Centrilobular, Necrosis | | 1 3.0| Serosa, Fibrosis | | 1 2.0| |__________________________________________________________________________|____________| Mesentery | + + + + +| 11 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 35 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Inflammation, Chronic | | 1 1.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + A + A +| 47 | Acinus, Atrophy, Focal | 1 2 4 3 1 1 1 3 2 2 1 3 1 2 | 26 1.8| Duct, Cyst, Focal, Multiple | 1 1 2 1 2 | 11 1.4| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy, Focal | 1 | 2 1.5| Inflammation, Chronic | | 1 3.0| |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + A +| 49 | Diverticulum | X | 1 | Edema | 3 | 2 3.0| Inflammation | | 2 2.0| Ulcer | 1 2 | 3 1.7| Epithelium, Hyperplasia | 2 2 2 | 6 2.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + A +| 49 | Erosion | 3 | 1 3.0| |__________________________________________________________________________|____________| Tongue | + | 4 | Epithelium, Hyperplasia | | 1 1.0| |__________________________________________________________________________|____________| Tooth | + | 2 | Malformation | 2 | 2 2.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | | 2 | |__________________________________________________________________________|____________| Heart | A + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Cardiomyopathy | 2 2 2 1 2 1 2 2 2 2 1 2 2 2 1 2 2 2 2 2 1| 38 1.8| Thrombosis | 3 | 2 3.0| Artery, Inflammation, Chronic | 2 | 1 2.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 36 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Adrenal Cortical Nodule | 1 | 3 1.3| Angiectasis | 2 3 3 2 2 3 | 7 2.6| Cytoplasmic Alteration, Focal | 2 | 2 1.5| Hemorrhage, Focal | 3 | 2 3.0| Vacuolization Cytoplasmic, Focal | 2 1 1 3 3 | 13 2.2| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 3 | 1 3.0| Hyperplasia, Focal | 2 | 2 2.5| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + A +| 48 | Atrophy | 3 | 1 3.0| |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + M +| 48 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 2 | 3 2.0| Cyst | | 2 | Pars Distalis, Angiectasis | 3 1 | 3 2.0| Pars Distalis, Degeneration, Cystic, | | | Focal | 2 1 2 2 | 5 1.8| Pars Distalis, Hemorrhage, Focal | | 1 2.0| Pars Distalis, Hyperplasia, Focal | 3 2 | 5 2.4| Pars Distalis, Hypertrophy, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Thyroid Gland | A + + A + + + + + + A + + + + + + A + + + A + A +| 40 | C-Cell, Hyperplasia | 2 1 3 2 2 2 1 2 2 1 1 1 2 3 3 2 | 36 1.9| Follicle, Degeneration, Focal | 1 | 1 1.0| Follicle, Mineralization | 1 1 1 1 1 1 | 6 1.0| Follicular Cell, Hyperplasia, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 37 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENERAL BODY SYSTEM - cont | | | |__________________________________________________________________________|____________| Tissue NOS | + + + | 6 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 3 3 3 | 5 3.0| Hyperplasia, Cystic | 2 | 1 2.0| Hyperplasia, Focal, Histiocytic | 2 | 1 2.0| |__________________________________________________________________________|____________| Ovary | A + + + + + + + + + + + + + + + + + + + + + + A +| 48 | Cyst | X X | 5 | |__________________________________________________________________________|____________| Oviduct | + | 2 | |__________________________________________________________________________|____________| Uterus | A + + + + + + + + + + + + + + + + + + + + + + A +| 48 | Ulcer | 4 | 1 4.0| Endometrium, Hyperplasia, Cystic | 3 3 2 2 1 3 3 1 2 2 | 18 2.1| |__________________________________________________________________________|____________| Vagina | + + | 5 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + A +| 49 | Fibrosis | | 1 3.0| Hyperplasia, Focal, Histiocytic | 2 2| 2 2.0| Hyperplasia | 3 | 1 3.0| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + + + + + + +| 24 | Mediastinal, Hemorrhage | 3 3 3 | 5 3.0| Mediastinal, Hyperplasia, Histiocytic| | 1 3.0| Mediastinal, Hyperplasia, Plasma Cell| | 1 3.0| Pancreatic, Hemorrhage | 2 | 2 2.5| Pancreatic, Hyperplasia, Histiocytic | 3 3 3| 7 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 38 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | |__________________________________________________________________________|____________| Lymph Node, Mandibular | M + M M M M M M M M M M M M M M M M M M M M M M M| 1 | Hyperplasia, Lymphoid | 3 | 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + A +| 49 | Ectasia | 3 | 2 3.0| Hyperplasia, Histiocytic | | 1 3.0| |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + A + A +| 47 | Accessory Spleen | X | 1 | Atrophy | 2 | 2 2.5| Congestion | 3 | 1 3.0| Fibrosis, Focal | | 1 3.0| Inflammation, Granulomatous | 4 4 2 2 4 3| 10 3.2| Capsule, Infiltration Cellular, | | | Focal, Mixed Cell | 2 | 2 2.0| |__________________________________________________________________________|____________| Thymus | + + + M + + + + + + + + + + + + + + + + + + + A +| 48 | Angiectasis | | 1 2.0| Hyperplasia, Lymphoid | | 1 2.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Dilatation | 1 2 2 2 2 | 8 2.0| Hyperplasia | 2 | 3 1.7| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Focal | 2 | 1 2.0| Epidermis, Hyperplasia, Focal | | 1 1.0| Subcutaneous Tissue, Hemorrhage, | | | Focal | 2 | 1 2.0| Subcutaneous Tissue, Necrosis, Fatty,| | | Focal | 3 | 1 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 39 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Skeletal Muscle | +| 1 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 3 3 3 | 8 3.0| Hemorrhage, Focal | 1 3 | 4 2.0| Thalamus, Mineralization, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + | 24 | |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + | 24 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | +| 1 | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 3 | 3 3.0| Hemorrhage, Focal | | 2 3.0| Inflammation, Chronic, Focal | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| 39 1.0| Interstitium, Edema | 2 | 1 2.0| Mediastinum, Congestion | 3 | 1 3.0| Mediastinum, Edema | 3 | 1 3.0| Mediastinum, Mineralization, Focal | 3 | 1 3.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Suppurative | | 1 2.0| Nasolacrimal Duct, Inflammation | 2 2| 4 2.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 40 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 5| 7| 1| 7| | DAY ON TEST | 3| 3| 5| 3| 3| 3| 3| 3| 3| 3| 2| 0| 3| 3| 9| 3| 3| 1| 3| 3| 3| 5| 0| 0| 3| | | 6| 7| 3| 5| 7| 7| 7| 7| 7| 7| 8| 0| 6| 6| 3| 5| 5| 9| 5| 5| 5| 2| 0| 4| 5| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 2500 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | A + + A + + + + + + A + + + + + + + + + + A + A +| 40 | Atrophy | 3 4 | 3 3.3| Cataract | | 1 2.0| Cornea, Necrosis, Focal | | 1 4.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cytoplasmic Alteration, Focal | | 1 1.0| Hyperplasia, Focal, Histiocytic | 1 1| 5 1.2| Epithelium, Hyperplasia, Focal | 1| 1 1.0| |__________________________________________________________________________|____________| Zymbal's Gland | + | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | A + + A + + + + + + + + + + + + + A + + + A + A +| 43 | Cyst | | 2 2.5| Infarct | | 1 4.0| Nephropathy | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| 36 1.1| Renal Tubule, Accumulation, Hyaline | | | Droplet | 2 | 2 2.5| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + A +| 49 | Hemorrhage | | 1 1.0| Inflammation | 3 | 1 3.0| Transitional Epithelium, Hyperplasia | | 1 2.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 41 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + A A + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + A A + + + + + + + + + + A + + + + + + + A + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + A A + + + + + + + + + + + + + + + + + + A + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + A A + + + + + + + + + A A + + + + + + + A + + +| |__________________________________________________________________________| Intestine Small, Ileum | + A A + + + + + + + + + + A + + + + + + + A + + +| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X X X X X X X | Clear Cell Focus | X X X X X X X X X X X X X X| Congestion | 3 | Degeneration, Cystic, Focal | 2 4 3 | Eosinophilic Focus | X X X X X X X X | Hemorrhage | | Hepatodiaphragmatic Nodule | X X X X X X | Histiocytosis | 3 4 3 3 2 2 3 3 2 2 2 2 3 2 2 2 2 2 2 2 3 3 3 2 3| Hyperplasia, Focal, Histiocytic | 2 | Infiltration Cellular, Mixed Cell | 2 1 1 | Inflammation, Chronic | 3 2 1 3 2 1 1 2 1 4 2 1 1 1 2 1 2 1 2| Mixed Cell Focus | X X X X X X X X X X | Bile Duct, Cyst | X | Bile Duct, Dilatation, Focal | 2 | Bile Duct, Hyperplasia | 2 2 2 3 1 2 2 1 1 2 2 2 2 1 | Hepatocyte, Fatty Change, Focal | 3 2 2 2 2 2 2 2 2 2 2 2 2 2 3| Hepatocyte, Necrosis, Focal | 2 | Hepatocyte, Vacuolization Cytoplasmic| 3 2 3 3 | Hepatocyte, Centrilobular, Necrosis | 4 | Oval Cell, Hyperplasia, Focal | | |__________________________________________________________________________| Mesentery | + + + | __________________________________________|__________________________________________________________________________| Page 42 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | Fat, Necrosis, Focal | | Lymphatic, Angiectasis | 2 | |__________________________________________________________________________| Pancreas | + A A + + + + + + + + + + + + + + + + + + + + + +| Acinus, Atrophy, Focal | 3 1 2 3 1 2 1 3 2 1 2 2 2 3| Duct, Cyst, Focal, Multiple | 2 2 1 2 2 | |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 3 | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | | Ulcer | 1 | Epithelium, Hyperplasia | | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Erosion | 2 | |__________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 1 3 2 2 2 2 2 1 3 1 2 2 3 1 2 1 3 2 4 2 2 1| Thrombosis | 3 3 3 4 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 1 | Angiectasis | 3 | Cytoplasmic Alteration, Focal | 3 | Hemorrhage, Focal | | Vacuolization Cytoplasmic, Focal | 2 2 1 2 2 | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 43 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | Angiectasis | | |__________________________________________________________________________| Islets, Pancreatic | + A A + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Parathyroid Gland | + A + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal | | |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 2 3 | Cyst | X X X| Pars Distalis, Degeneration, Cystic, | | Focal | 1| Pars Distalis, Hyperplasia, Focal | 3 1 1 | Pars Distalis, Hypertrophy, Focal | 1 1 | |__________________________________________________________________________| Thyroid Gland | + A + + + + + + + + + + + A + + + + + + + A + + +| C-Cell, Hyperplasia | 3 2 2 1 1 1 3 3 1 1 1 1 3 1 1 2| Follicle, Degeneration, Focal | | Follicle, Mineralization | 1 1 1 1 1 1 1| Follicular Cell, Hyperplasia, Focal | 2 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Tissue NOS | + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | 3 | Hyperplasia, Cystic | | Inflammation, Chronic | 2 1 | |__________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 | Periovarian Tissue, Hemorrhage | 3 | |__________________________________________________________________________| Oviduct | + | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 44 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Endometrium, Hyperplasia, Cystic | 1 1 2 2 1 2 2 2 1 2 2 1 1 1 | |__________________________________________________________________________| Vagina | + | Angiectasis | | Infiltration Cellular, | | Polymorphonuclear | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + A + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | Hyperplasia, Focal, Histiocytic | 2 2 | Hyperplasia | 2 | |__________________________________________________________________________| Lymph Node | + + A + + + + + + + + + + + + + + + + | Hyperplasia, Plasma Cell | | Mediastinal, Ectasia | | Mediastinal, Hemorrhage | 3 3 | Mediastinal, Hyperplasia, Histiocytic| 3 3 3 3 3 | Mediastinal, Hyperplasia, Lymphoid | | Pancreatic, Hemorrhage | 3 3 | Pancreatic, Hyperplasia, Histiocytic | 3 4 3 3 | Pancreatic, Hyperplasia, Lymphoid | | Renal, Hyperplasia, Histiocytic | | |__________________________________________________________________________| Lymph Node, Mandibular | + M M M M + M M M M M M M + M M M M M M M M M M M| Hyperplasia, Histiocytic | | |__________________________________________________________________________| Lymph Node, Mesenteric | + + A + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 | Hyperplasia, Histiocytic | 3 3 | Hyperplasia, Lymphoid | | |__________________________________________________________________________| Spleen | + + A + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | X | Fibrosis, Focal | | Inflammation, Granulomatous | 1 | __________________________________________|__________________________________________________________________________| Page 45 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | Capsule, Infiltration Cellular, | | Focal, Mixed Cell | 1 | |__________________________________________________________________________| Thymus | + I + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Lymphoid | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | | Hyperplasia | | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | 3 | Epidermis, Hyperplasia, Focal | 3 2 | Lip, Cyst Epithelial Inclusion | | Subcutaneous Tissue, Edema | 3 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | 2 | Hemorrhage, Focal | 2 | Meninges, Hemorrhage, Focal | 3 | Thalamus, Mineralization, Focal | 2 | |__________________________________________________________________________| Peripheral Nerve | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Spinal Cord | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage, Focal | | Necrosis, Focal | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 46 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM - cont | | Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 3 2 | Hemorrhage, Focal | 2 2 | Hyperplasia, Focal, Histiocytic | 3 | Infiltration Cellular, Mixed Cell | 3 | Inflammation, Chronic, Focal | 1 1 1 1 1 1 1 1 1 1 1 2 4 2 1 1 1 1 1 2 1 1| Alveolar Epithelium, Hyperplasia, | | Focal | 2 1 | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Nasolacrimal Duct, Hemorrhage | 1 | Nasolacrimal Duct, Inflammation | | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + A A + + + + + + + + + + + + + + + + + + A + + +| Atrophy | 3 4 3 | Cataract | | Inflammation, Chronic | | Synechia | 3 | Anterior Chamber, Exudate | | Cornea, Necrosis, Focal | 3 4 | Retina, Degeneration | 3 | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + A A + + + + + + + + + + A + + + + + + + A + + +| Hydronephrosis | | Infarct | 2 | Nephropathy | 4 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| Renal Tubule, Accumulation, Hyaline | | Droplet | 3 | Renal Tubule, Hyperplasia, Focal | 2 | Renal Tubule, Pigmentation | | __________________________________________|__________________________________________________________________________| Page 47 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 7| 7| 7| 7| 5| 7| 7| 7| 6| 3| 7| 7| 5| 7| 7| 7| 7| 6| 7| 6| 7| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 3| 4| 3| 3| 3| 5| 2| 3| 3| 3| 3| 3| 3| 3| 8| 3| 2| 3| | 7| 6| 5| 7| 7| 7| 7| 7| 1| 7| 5| 5| 4| 3| 5| 7| 8| 7| 7| 7| 7| 8| 7| 8| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 5000 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| URINARY SYSTEM - cont | | |__________________________________________________________________________| Urinary Bladder | + A + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Inflammation | | __________________________________________|__________________________________________________________________________ Page 48 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + A + + + + + + + + + + + A + + + + + + + + +| 46 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + A + + + + + + + + +| 48 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + A + + + + + + + + + + + A + + A + + + + + +| 43 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + A + + + + + + + + + + + A + + + + + + + + +| 45 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + A + + + + + + + + + + + A + + A + + + + + +| 42 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + A + + + + + + + + + + + A + + A + + + + + +| 43 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Basophilic Focus | X X X X X X X X X X X X X X X| 25 | Clear Cell Focus | X X X X X X X X X X X X X | 27 | Congestion | | 1 3.0| Degeneration, Cystic, Focal | | 3 3.0| Eosinophilic Focus | X X X | 11 | Hemorrhage | 2 | 1 2.0| Hepatodiaphragmatic Nodule | X X X X X| 11 | Histiocytosis | 3 3 3 3 2 3 3 3 3 3 2 2 3 2 2 3 2 3 2 2 2 2 3 3 3| 50 2.5| Hyperplasia, Focal, Histiocytic | 2 | 2 2.0| Infiltration Cellular, Mixed Cell | 2 2 | 5 1.6| Inflammation, Chronic | 2 2 2 1 1 2 1 2 1 3 1 1 1 2 2 2| 35 1.7| Mixed Cell Focus | X X X X X X X X| 18 | Bile Duct, Cyst | | 1 | Bile Duct, Dilatation, Focal | | 1 2.0| Bile Duct, Hyperplasia | 2 2 3 2 1 1 2 2 1 2 2 2 2 3 1 2 3 2 2 2 1| 35 1.9| Hepatocyte, Fatty Change, Focal | 3 3 3 2 2 3 1 2 2 2 1 3 2 2 2 3 2| 32 2.2| Hepatocyte, Necrosis, Focal | | 1 2.0| Hepatocyte, Vacuolization Cytoplasmic| 1 2 2 2 2 3 3| 11 2.4| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 49 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Hepatocyte, Centrilobular, Necrosis | | 1 4.0| Oval Cell, Hyperplasia, Focal | 2 2 | 2 2.0| |__________________________________________________________________________|____________| Mesentery | + + + + + | 8 | Fat, Necrosis, Focal | 1 | 1 1.0| Lymphatic, Angiectasis | | 1 2.0| |__________________________________________________________________________|____________| Pancreas | + + + A + + + + + + + + + + + + + + + + + + + + +| 47 | Acinus, Atrophy, Focal | 1 1 1 1 1 1 2 3 3 1 1 3 1 1 2 1| 30 1.7| Duct, Cyst, Focal, Multiple | 1 1 2 2 | 9 1.7| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | | 1 3.0| |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Edema | 3 | 1 3.0| Ulcer | 1 | 2 1.0| Epithelium, Hyperplasia | 1 | 1 1.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + A + + + + + + + + + + + + + + + + + + + + +| 49 | Erosion | 2 1 1 | 4 1.5| |__________________________________________________________________________|____________| Tongue | + + | 3 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | | 1 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 1 2 2 2 2 2 2 2 1 2 1 2 2 1 1 1 2 2 2 3| 44 1.9| Thrombosis | 4 | 5 3.4| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 50 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Adrenal Cortical Nodule | 1 | 2 1.0| Angiectasis | 2 3 3 | 4 2.8| Cytoplasmic Alteration, Focal | 1 | 2 2.0| Hemorrhage, Focal | 3 | 1 3.0| Vacuolization Cytoplasmic, Focal | 1 2 2 1 1 2 1| 12 1.6| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 | 1 2.0| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + A + + + + + + + + + + + + + + + + + + + + +| 47 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hyperplasia, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 | 4 2.5| Cyst | X X| 5 | Pars Distalis, Degeneration, Cystic, | | | Focal | 1 3 | 3 1.7| Pars Distalis, Hyperplasia, Focal | 3 | 4 2.0| Pars Distalis, Hypertrophy, Focal | 3 1| 4 1.5| |__________________________________________________________________________|____________| Thyroid Gland | + + + A + + + + + + + + + + + A + + + + + + + + +| 45 | C-Cell, Hyperplasia | 1 3 1 2 2 2 2 1 2 2 2 1 1 1 3 1 1 1 3| 35 1.7| Follicle, Degeneration, Focal | 1 | 1 1.0| Follicle, Mineralization | 1 1 1 1 1 1 1 1 1 1 1 1| 19 1.0| Follicular Cell, Hyperplasia, Focal | | 2 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | |__________________________________________________________________________|____________| Tissue NOS | + + + + + | 6 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 51 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENITAL SYSTEM - cont | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 2 2 | 3 2.3| Hyperplasia, Cystic | 3 | 1 3.0| Inflammation, Chronic | 2 | 3 1.7| |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 3| 2 3.0| Periovarian Tissue, Hemorrhage | | 1 3.0| |__________________________________________________________________________|____________| Oviduct | | 1 | |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Endometrium, Hyperplasia, Cystic | 1 1 1 2 2 1 2 1 2 1 3 2| 26 1.5| |__________________________________________________________________________|____________| Vagina | + + + | 4 | Angiectasis | 3 | 1 3.0| Infiltration Cellular, | | | Polymorphonuclear | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + A + + + + + + + + + + + + + + + + + + + + +| 48 | Atrophy | 3 | 2 3.0| Hyperplasia, Focal, Histiocytic | 2 | 3 2.0| Hyperplasia | 3 | 2 2.5| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + + + + + + + + + +| 35 | Hyperplasia, Plasma Cell | 3 | 1 3.0| Mediastinal, Ectasia | 3 | 1 3.0| Mediastinal, Hemorrhage | 3 | 3 3.0| Mediastinal, Hyperplasia, Histiocytic| 3 | 6 3.0| Mediastinal, Hyperplasia, Lymphoid | 3| 1 3.0| Pancreatic, Hemorrhage | | 2 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 52 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Pancreatic, Hyperplasia, Histiocytic | 3 3 3 | 7 3.1| Pancreatic, Hyperplasia, Lymphoid | 3| 1 3.0| Renal, Hyperplasia, Histiocytic | 3 | 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M + M M M M M M M M M M M M M M M M M| 4 | Hyperplasia, Histiocytic | 3 | 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + A + + + + + + + + + + + A + + + + + + + + +| 47 | Hemorrhage | | 1 3.0| Hyperplasia, Histiocytic | | 2 3.0| Hyperplasia, Lymphoid | 3| 1 3.0| |__________________________________________________________________________|____________| Spleen | + + + A + + + + + + + + + + + + + + + + + + + + +| 48 | Accessory Spleen | | 1 | Fibrosis, Focal | 2 | 1 2.0| Inflammation, Granulomatous | 2 2 | 3 1.7| Capsule, Infiltration Cellular, | | | Focal, Mixed Cell | | 1 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + + + + M + + + +| 48 | Hyperplasia, Lymphoid | 3| 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Dilatation | 2 | 1 2.0| Hyperplasia | 2 | 1 2.0| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Ulcer | | 1 3.0| Epidermis, Hyperplasia, Focal | | 2 2.5| Lip, Cyst Epithelial Inclusion | 2 | 1 2.0| Subcutaneous Tissue, Edema | | 1 3.0| _____________________________________________________________________________________________________________________| | * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 53 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 | 2 2.5| Hemorrhage, Focal | 1 | 2 1.5| Meninges, Hemorrhage, Focal | | 1 3.0| Thalamus, Mineralization, Focal | | 1 2.0| |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hemorrhage, Focal | 3 3 | 2 3.0| Necrosis, Focal | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 2 2 | 5 2.2| Hemorrhage, Focal | | 2 2.0| Hyperplasia, Focal, Histiocytic | 3 | 2 3.0| Infiltration Cellular, Mixed Cell | | 1 3.0| Inflammation, Chronic, Focal | 1 1 1 1 1 2 1 1 3 1 1 1 1 2 1 1 1 1 1 1 1| 43 1.2| Alveolar Epithelium, Hyperplasia, | | | Focal | | 2 1.5| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Nasolacrimal Duct, Hemorrhage | | 1 1.0| Nasolacrimal Duct, Inflammation | 3 3 3 2 2 | 5 2.6| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 54 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 3| 7| 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| | DAY ON TEST | 3| 3| 3| 3| 4| 2| 2| 2| 2| 2| 1| 3| 3| 6| 3| 1| 3| 6| 0| 3| 3| 3| 3| 4| 4| | | 7| 7| 7| 5| 1| 9| 9| 9| 9| 9| 2| 5| 5| 8| 5| 7| 6| 6| 5| 6| 7| 7| 7| 2| 2| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| A | 5000 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + A + + + + + + + + + + + A + + + + + + + + +| 45 | Atrophy | 3 | 4 3.3| Cataract | 3 | 1 3.0| Inflammation, Chronic | 3 | 1 3.0| Synechia | 3 | 2 3.0| Anterior Chamber, Exudate | 3 | 1 3.0| Cornea, Necrosis, Focal | | 2 3.5| Retina, Degeneration | 3 3 | 3 3.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + A + + + + + + + + + + + A + + A + + + + + +| 43 | Hydronephrosis | 2 | 1 2.0| Infarct | 2 | 2 2.0| Nephropathy | 2 1 1 3 1 1 2 1 2 1 1 1 1 3 1 1 1 3 2| 38 1.4| Renal Tubule, Accumulation, Hyaline | | | Droplet | | 1 3.0| Renal Tubule, Hyperplasia, Focal | | 1 2.0| Renal Tubule, Pigmentation | 3 3 | 2 3.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + A + + + + + + + + + + + + + + + + + + + + +| 48 | Hemorrhage | 3 3 | 2 3.0| Inflammation | 2 | 1 2.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 55 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + A + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X X X X X X X X X X X X| Congestion | 3 | Degeneration, Cystic, Focal | 1 | Eosinophilic Focus | | Fibrosis | 2 | Hepatodiaphragmatic Nodule | X X | Histiocytosis | 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1| Hyperplasia, Focal, Histiocytic | | Infiltration Cellular, Mixed Cell | 2 2 1 2 1 1 1 1 1 1 | Inflammation, Chronic | 1 1 1 2 1 1 1| Inflammation, Granulomatous | 1 | Mixed Cell Focus | X X X X | Bile Duct, Dilatation, Focal | 2 1 | Bile Duct, Hyperplasia | 3 2 3 3 3 3 3 2 2 4 2 3 2 2 3 3 3 3 2 3 3 3 2 3 3| Hepatocyte, Fatty Change, Focal | 1 1 1 2 1 2 2 2 1 2| Hepatocyte, Vacuolization Cytoplasmic| 3 3 1 3 2 2 1 3 2 | Serosa, Inflammation, Chronic, Focal | 2 | |__________________________________________________________________________| Mesentery | + + + + + + + | Fat, Hemorrhage, Focal | 2 | Fat, Necrosis, Focal | 3 3 3 3 | __________________________________________|__________________________________________________________________________| Page 56 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | |__________________________________________________________________________| Oral Mucosa | | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Acinus, Atrophy, Focal | 3 3 1 3 2 1 1 1 2 1 1 2 1 2| Duct, Cyst, Focal, Multiple | 1 2 1 2 2 1 1 2 | |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy, Focal | 2 | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | 3 3 | Inflammation | 2 | Ulcer | 2 2 1 3 2 | Epithelium, Hyperplasia | 2 3 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | 2 3 | Erosion | 3 | Ulcer | 2 | |__________________________________________________________________________| Tooth | + | Peridontal Tissue, Inflammation | 3 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 1 1 2 2 2 2 3 2 2 1 2 2 2 2 1 2 2| Thrombosis | 4 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 2 1 1 1 | Cytoplasmic Alteration, Focal | 1 | Hematopoietic Cell Proliferation | 3 | Hemorrhage, Focal | | Necrosis | 2 | __________________________________________|__________________________________________________________________________| Page 57 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | Vacuolization Cytoplasmic, Focal | 1 1| |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal | 2 2 | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + M +| Hyperplasia, Focal | 2 | |__________________________________________________________________________| Pituitary Gland | + + + + + M + + + + + + + + + + + + + + + + + + +| Angiectasis | | Cyst | X X X X| Pars Distalis, Hemorrhage, Focal | | Pars Distalis, Hyperplasia, Focal | 2 | Pars Distalis, Hyperplasia | | Pars Distalis, Hypertrophy, Focal | 2 1 2 1 1 3 2 | Pars Nervosa, Inflammation | 1 | |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 1 1 1 2 2 1 1 1 1 2 1 2 2 2 1 1 2 1 1 2 1| Follicle, Degeneration, Focal | 1 1 1 | Follicle, Mineralization | 1 | Follicular Cell, Hyperplasia, Focal | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Tissue NOS | + + + + | Mediastinum, Cyst | 2 | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | 3 | Spermatocele | 3 | |__________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 58 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Degeneration, Cystic | 3 2 3 | Fibrosis | | Hyperplasia, Cystic | 2 | Inflammation, Chronic | 2 1 1 2 2 2 2 2 2 2 1 1 1 1| |__________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 1 2 1 1 1 1 1 2 1 2 1 1 3 1 2 3| Epithelium, Hyperplasia, Focal | | |__________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 3 3 3 3 3 3 | Cyst | | Interstitial Cell, Hyperplasia, Focal| 1 2 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Atrophy | 3 | Hyperplasia | 3 3 | |__________________________________________________________________________| Lymph Node | + + + + + + + + + + | Deep Cervical, Hyperplasia, Plasma | | Cell | 3 | Mediastinal, Ectasia | | Mediastinal, Hemorrhage | 3 3 | Mediastinal, Hyperplasia, Histiocytic| 3 3 | Mediastinal, Hyperplasia, Plasma Cell| 3 | Pancreatic, Ectasia | 2 | Pancreatic, Hyperplasia, Histiocytic | 3 2 | |__________________________________________________________________________| Lymph Node, Mandibular | M M M M M M M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | | Hyperplasia, Histiocytic | 3 3 | __________________________________________|__________________________________________________________________________| Page 59 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | X X X | Atrophy | 3 | Fibrosis, Diffuse | 3 | Fibrosis, Focal | 3| Hematopoietic Cell Proliferation | 3 | Hemorrhage | 4 | Hyperplasia, Lymphoid | 2 | |__________________________________________________________________________| Thymus | + + + + + M + + + + + + + + + + + + + + + + + + +| Hemorrhage | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + M + + + + + + + + + + + + + + + + + + + + +| Dilatation | 1 2 3 2 2 | Fibrosis | | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | | Hyperkeratosis, Focal | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Vertebra, Cyst | 4 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | 3 | Hemorrhage, Focal | 2 | Meninges, Hemorrhage, Focal | | |__________________________________________________________________________| Peripheral Nerve | + | |__________________________________________________________________________| Spinal Cord | + | __________________________________________|__________________________________________________________________________| Page 60 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 3 | Hemorrhage, Focal | | Infiltration Cellular, Mixed Cell | 2 1 | Inflammation, Chronic, Focal | 1 1 | Alveolar Epithelium, Hyperplasia, | | Focal | | |__________________________________________________________________________| Nose | + + + + + M + + + + + + + + + + + + + + + + + + +| Foreign Body | | Hemorrhage | 3 | Inflammation, Suppurative | 3 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + + + + + + + + + + + +| Cataract | | Retina, Degeneration | | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal, Histiocytic | 3 | Epithelium, Hyperplasia, Focal | | |__________________________________________________________________________| Zymbal's Gland | + + + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Cyst | 2 2| Nephropathy | 2 1 1 2 2 2 2 2 1 3 3 1 1 2 1 2 1 2 2 2 1 1 1 1 3| Renal Tubule, Accumulation, Hyaline | | Droplet | 2 | Renal Tubule, Pigmentation | 2 | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 61 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| DAY ON TEST | 3| 3| 1| 3| 0| 6| 0| 3| 6| 0| 0| 4| 3| 8| 3| 3| 2| 3| 3| 3| 3| 3| 4| 3| 3| | 4| 4| 2| 0| 0| 7| 5| 4| 7| 0| 0| 2| 0| 5| 0| 0| 3| 0| 5| 5| 5| 4| 7| 4| 0| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| URINARY SYSTEM - cont | | Urinary Bladder | + + + + + + + + + + + + + M + + + + + + + + + + +| Hemorrhage | 3 | Inflammation | | Ulcer | 3 | __________________________________________|__________________________________________________________________________ Page 62 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + A + + + + + + + + + + + + + + + + + + + A + +| 48 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + A + +| 49 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + A + + + + + + + + + + + + + + A + + + + A + +| 46 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + A + +| 49 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + A + + + + A A +| 47 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + A + + + + + + + + + + + + + + A + + + + A A +| 46 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Basophilic Focus | X X X X X X X X X X X X X X X X| 31 | Clear Cell Focus | X X X X X X X X X X X X X X X| 31 | Congestion | 1 | 2 2.0| Degeneration, Cystic, Focal | 1 2 1 | 4 1.3| Eosinophilic Focus | X X X X | 4 | Fibrosis | | 1 2.0| Hepatodiaphragmatic Nodule | X X X | 5 | Histiocytosis | 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1| 38 1.1| Hyperplasia, Focal, Histiocytic | 1 | 1 1.0| Infiltration Cellular, Mixed Cell | 1 1 1 1 1 | 15 1.2| Inflammation, Chronic | 1 1 2 1 1 1 1 1 1 1 1 | 18 1.1| Inflammation, Granulomatous | | 1 1.0| Mixed Cell Focus | X | 5 | Bile Duct, Dilatation, Focal | | 2 1.5| Bile Duct, Hyperplasia | 3 3 3 4 3 3 3 3 2 2 3 3 2 3 3 3 3 2 3 3 3 3 3| 48 2.8| Hepatocyte, Fatty Change, Focal | 2 2 1 1 2 1 2 1 1 1 3 | 21 1.5| Hepatocyte, Vacuolization Cytoplasmic| 2 2 | 11 2.2| Serosa, Inflammation, Chronic, Focal | | 1 2.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 63 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | |__________________________________________________________________________|____________| Mesentery | + + + + + +| 13 | Fat, Hemorrhage, Focal | | 1 2.0| Fat, Necrosis, Focal | 3 3 2 2 3| 9 2.8| |__________________________________________________________________________|____________| Oral Mucosa | + | 1 | |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Acinus, Atrophy, Focal | 1 3 2 1 2 2 2 1 2 | 23 1.7| Duct, Cyst, Focal, Multiple | 2 3 1 2 2 1 2 | 15 1.7| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy, Focal | | 1 2.0| |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Edema | 3 | 3 3.0| Inflammation | | 1 2.0| Ulcer | | 5 2.0| Epithelium, Hyperplasia | 3 | 4 2.5| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Edema | | 2 2.5| Erosion | 1 1 | 3 1.7| Ulcer | | 1 2.0| |__________________________________________________________________________|____________| Tooth | | 1 | Peridontal Tissue, Inflammation | | 1 3.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 1 2 2 2 2 1 1 1 1 1 1 2 2 2 2 2 1 2 2 2 2| 40 1.7| Thrombosis | | 1 4.0| _____________________________________________________________________________________________________________________| | * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 64 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Adrenal Cortical Nodule | 1 1 1 2 1 | 9 1.2| Cytoplasmic Alteration, Focal | 1 1 | 3 1.0| Hematopoietic Cell Proliferation | | 1 3.0| Hemorrhage, Focal | 2 | 1 2.0| Necrosis | | 1 2.0| Vacuolization Cytoplasmic, Focal | 2 1 2 1 | 6 1.3| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal | 1 2 1 1 1 | 7 1.4| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 | 1 2.0| |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + M| 48 | Hyperplasia, Focal | | 1 2.0| |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Angiectasis | 2 | 1 2.0| Cyst | | 4 | Pars Distalis, Hemorrhage, Focal | 3 2 | 2 2.5| Pars Distalis, Hyperplasia, Focal | 3 2 | 3 2.3| Pars Distalis, Hyperplasia | 3 | 1 3.0| Pars Distalis, Hypertrophy, Focal | 2 | 8 1.8| Pars Nervosa, Inflammation | | 1 1.0| |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + A + + + + A A +| 47 | C-Cell, Hyperplasia | 2 2 1 2 1 1 1 1 2 2 2 1 2 4 1 1 2 2| 41 1.5| Follicle, Degeneration, Focal | 1 1 1 | 6 1.0| Follicle, Mineralization | 1 1| 3 1.0| Follicular Cell, Hyperplasia, Focal | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 65 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENERAL BODY SYSTEM - cont | | | |__________________________________________________________________________|____________| Tissue NOS | + + | 6 | Mediastinum, Cyst | | 1 2.0| _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Granuloma Sperm | | 1 3.0| Spermatocele | | 1 3.0| |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 3 3 | 5 2.8| Fibrosis | 3 | 1 3.0| Hyperplasia, Cystic | 3 2 | 3 2.3| Inflammation, Chronic | 1 2 1 3 1 2 1 3 2 2 1 2 2 1 1 1| 30 1.6| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | 1 3 1 2 2 2 3 1 1 3 3 | 27 1.7| Epithelium, Hyperplasia, Focal | 2 1 1 1 | 4 1.3| |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 3 3 3 3 3 3 3 3| 15 3.0| Cyst | 3 | 1 3.0| Interstitial Cell, Hyperplasia, Focal| 2 | 4 1.8| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + A A + + + + + + + + + + + + + A + + + + + + +| 47 | Angiectasis | 3 | 1 3.0| Atrophy | | 1 3.0| Hyperplasia | | 2 3.0| |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 66 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Lymph Node | + + + + + + + + + | 19 | Deep Cervical, Hyperplasia, Plasma | | | Cell | | 1 3.0| Mediastinal, Ectasia | 3 3 | 2 3.0| Mediastinal, Hemorrhage | 3 | 3 3.0| Mediastinal, Hyperplasia, Histiocytic| 3 3 3 | 5 3.0| Mediastinal, Hyperplasia, Plasma Cell| 3 | 2 3.0| Pancreatic, Ectasia | | 1 2.0| Pancreatic, Hyperplasia, Histiocytic | | 2 2.5| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M M M M M M M M M M M M M M M M M M M| | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Ectasia | 3 | 1 3.0| Hyperplasia, Histiocytic | | 2 3.0| |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Spleen | | 3 | Atrophy | 1 3 | 3 2.3| Fibrosis, Diffuse | | 1 3.0| Fibrosis, Focal | 3 | 2 3.0| Hematopoietic Cell Proliferation | | 1 3.0| Hemorrhage | | 1 4.0| Hyperplasia, Lymphoid | | 1 2.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + M + + + + + + + + + + + + +| 48 | Hemorrhage | 2 3 | 2 2.5| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + M + + + + + + M + + + + + + + + + + + + + + +| 47 | Dilatation | 2 4 2 2 2 3 3 | 12 2.3| Fibrosis | 2 | 1 2.0| |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 67 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| INTEGUMENTARY SYSTEM - cont | | | Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | 3 | 1 3.0| Hyperkeratosis, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Vertebra, Cyst | | 1 4.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 3 3 | 4 3.0| Hemorrhage, Focal | | 1 2.0| Meninges, Hemorrhage, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Peripheral Nerve | + | 2 | |__________________________________________________________________________|____________| Spinal Cord | + | 2 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 2 3 | 4 2.8| Hemorrhage, Focal | 3 1 2 3| 4 2.3| Infiltration Cellular, Mixed Cell | 2 | 3 1.7| Inflammation, Chronic, Focal | 2 | 3 1.3| Alveolar Epithelium, Hyperplasia, | | | Focal | 2 2 | 2 2.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Foreign Body | 2 | 1 2.0| Hemorrhage | | 1 3.0| Inflammation, Suppurative | 2 | 2 2.5| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 68 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 5| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 5| 7| 7| 6| 7| 7| 4| 7| | DAY ON TEST | 3| 3| 8| 9| 3| 3| 3| 3| 3| 8| 3| 3| 3| 2| 3| 3| 3| 8| 3| 3| 5| 3| 0| 6| 3| | | 0| 0| 2| 7| 0| 4| 4| 4| 5| 5| 5| 4| 4| 2| 0| 0| 0| 9| 5| 5| 3| 4| 9| 4| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | 0 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| RESPIRATORY SYSTEM - cont | | | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + A + + + + + + + + + + + + + + + + + + + A + +| 48 | Cataract | 3 3 | 2 3.0| Retina, Degeneration | 3 3 | 2 3.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal, Histiocytic | | 1 3.0| Epithelium, Hyperplasia, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Zymbal's Gland | | 3 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + A + + + + + + + + + + + + + + A + + + + + + +| 48 | Congestion | 3 | 1 3.0| Cyst | | 2 2.0| Nephropathy | 2 2 1 2 2 2 2 1 1 2 2 1 1 2 2 1 2 1 1 1 1 1| 47 1.6| Renal Tubule, Accumulation, Hyaline | | | Droplet | | 1 2.0| Renal Tubule, Pigmentation | | 1 2.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hemorrhage | | 1 3.0| Inflammation | 1 | 1 1.0| Ulcer | | 1 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 69 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 6| 7| 7| 5| 2| 7| 5| 7| 6| DAY ON TEST | 3| 9| 3| 3| 3| 3| 3| 6| 3| 3| 3| 3| 9| 3| 3| 3| 2| 3| 3| 1| 7| 3| 4| 3| 3| | 4| 3| 4| 0| 0| 0| 0| 7| 0| 0| 0| 0| 4| 4| 4| 4| 1| 4| 4| 6| 5| 0| 7| 0| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 625 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + A| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + A| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + A + + + + + + + A| Congestion | 3 | |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + A + + + + + + + A| |__________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + A + + + A + + + + + + + A| |__________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + A + + + A + + + + + + + A| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis, Focal | 2 | Basophilic Focus | X X X X X X X X X X X X X | Clear Cell Focus | X X X X X X X X X X X X X X | Degeneration, Cystic, Focal | | Eosinophilic Focus | X | Hepatodiaphragmatic Nodule | X | Histiocytosis | 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 2 1| Infiltration Cellular, Mixed Cell | 1 1 2 1 | Inflammation, Chronic | 1 1 1 1 1 1 1 1 1 1 1 2 1 1 | Mixed Cell Focus | X X X X | Bile Duct, Dilatation, Focal | 2 | Bile Duct, Hyperplasia | 3 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 2 3 2 3 2| Hepatocyte, Fatty Change, Focal | 2 2 2 1 3 2 1 3 3 3 2 1 2 | Hepatocyte, Necrosis, Focal | | Hepatocyte, Vacuolization Cytoplasmic| 3 3 3 2 4 4| |__________________________________________________________________________| Mesentery | + + + | Fat, Necrosis, Focal | 3 | |__________________________________________________________________________| Oral Mucosa | + | Foreign Body | 3 | __________________________________________|__________________________________________________________________________| Page 70 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 6| 7| 7| 5| 2| 7| 5| 7| 6| DAY ON TEST | 3| 9| 3| 3| 3| 3| 3| 6| 3| 3| 3| 3| 9| 3| 3| 3| 2| 3| 3| 1| 7| 3| 4| 3| 3| | 4| 3| 4| 0| 0| 0| 0| 7| 0| 0| 0| 0| 4| 4| 4| 4| 1| 4| 4| 6| 5| 0| 7| 0| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 625 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | Inflammation, Chronic, Focal | 3 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + A + + + + + + + A| Acinus, Atrophy, Focal | 1 2 1 1 1 2 1 2 1 1 1 2 2 | Duct, Cyst, Focal, Multiple | 1 2 2 2 1 | |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperkeratosis, Focal | | Ulcer | | Epithelium, Hyperplasia | 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Erosion | | Inflammation, Focal | | Ulcer | 3 | |__________________________________________________________________________| Tongue | + | Epithelium, Cyst | | |__________________________________________________________________________| Tooth | | Peridontal Tissue, Inflammation | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 2 2 2 2 1 1 1 1 2 1 2 1 2 2 2| Thrombosis | 3 3 3| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 1 2 | Angiectasis | | __________________________________________|__________________________________________________________________________| Page 71 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 6| 7| 7| 5| 2| 7| 5| 7| 6| DAY ON TEST | 3| 9| 3| 3| 3| 3| 3| 6| 3| 3| 3| 3| 9| 3| 3| 3| 2| 3| 3| 1| 7| 3| 4| 3| 3| | 4| 3| 4| 0| 0| 0| 0| 7| 0| 0| 0| 0| 4| 4| 4| 4| 1| 4| 4| 6| 5| 0| 7| 0| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 625 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | Cytoplasmic Alteration, Focal | 1 | Degeneration, Cystic | 4 | Necrosis | 4 | Vacuolization Cytoplasmic, Focal | 1 2 2 1 | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal | 1 | Necrosis | 3 | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | X | Pars Distalis, Degeneration, Cystic, | | Focal | | Pars Distalis, Hyperplasia, Focal | | Pars Distalis, Hypertrophy, Focal | 2 1 1 2 3 | |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + A + + + + + + + A| C-Cell, Hyperplasia | 1 1 2 1 2 2 2 1 2 1 1 1 2 1 2 1 1 1 3 | Follicle, Cyst | X X | Follicle, Degeneration, Focal | 1 1 | Follicle, Mineralization | | Follicular Cell, Hyperplasia, Focal | 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Peritoneum | + | |__________________________________________________________________________| Tissue NOS | + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 72 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 6| 7| 7| 5| 2| 7| 5| 7| 6| DAY ON TEST | 3| 9| 3| 3| 3| 3| 3| 6| 3| 3| 3| 3| 9| 3| 3| 3| 2| 3| 3| 1| 7| 3| 4| 3| 3| | 4| 3| 4| 0| 0| 0| 0| 7| 0| 0| 0| 0| 4| 4| 4| 4| 1| 4| 4| 6| 5| 0| 7| 0| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 625 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Degeneration, Cystic | 3 | Hyperplasia, Cystic | | Inflammation, Chronic | 2 3 1 1 1 2 1 2 2 1 2 2 2 2| |__________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 2 1 1 3 1 3 1 2 3 1 3 2| Epithelium, Hyperplasia, Focal | 1 1 1 2 | |__________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 3 3 3 3 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | |__________________________________________________________________________| Lymph Node | + + + + + + + A + + A| Hyperplasia, Plasma Cell | 3 | Mediastinal, Ectasia | 1 3 | Mediastinal, Hemorrhage | 3 | Mediastinal, Hyperplasia | | Mediastinal, Hyperplasia, Plasma Cell| 4 | Pancreatic, Hemorrhage | 3 | |__________________________________________________________________________| Lymph Node, Mandibular | M M M M M M M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + A + + + + + + + A| Ectasia | 3 | Hyperplasia, Histiocytic | | |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + A + + + + + + + +| Fibrosis, Focal | 3 | Hematopoietic Cell Proliferation | | Infarct | | Inflammation, Granulomatous | 3 | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 73 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 6| 7| 7| 5| 2| 7| 5| 7| 6| DAY ON TEST | 3| 9| 3| 3| 3| 3| 3| 6| 3| 3| 3| 3| 9| 3| 3| 3| 2| 3| 3| 1| 7| 3| 4| 3| 3| | 4| 3| 4| 0| 0| 0| 0| 7| 0| 0| 0| 0| 4| 4| 4| 4| 1| 4| 4| 6| 5| 0| 7| 0| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 625 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + M + + + + + + + +| Dilatation | 4 3 3 | Inflammation, Chronic, Focal | 2 | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | | Ulcer | | Epidermis, Hyperplasia, Focal | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | + | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | 3 3 3 | Hemorrhage, Focal | 2 3 | Meninges, Congestion, Focal | 2 | |__________________________________________________________________________| Peripheral Nerve | + + | |__________________________________________________________________________| Spinal Cord | + + | Hemorrhage, Focal | 1 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hemorrhage, Focal | 3 | Inflammation, Chronic, Focal | 1 3 | Alveolar Epithelium, Hyperplasia, | | __________________________________________|__________________________________________________________________________| Page 74 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 6| 7| 7| 5| 2| 7| 5| 7| 6| DAY ON TEST | 3| 9| 3| 3| 3| 3| 3| 6| 3| 3| 3| 3| 9| 3| 3| 3| 2| 3| 3| 1| 7| 3| 4| 3| 3| | 4| 3| 4| 0| 0| 0| 0| 7| 0| 0| 0| 0| 4| 4| 4| 4| 1| 4| 4| 6| 5| 0| 7| 0| 7| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 625 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM - cont | | Focal | 1 2 | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Suppurative | | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Ear | + | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + + + A + + + + + + + A| Cataract | 3 | Anterior Chamber, Exudate | | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Lacrimal Gland | + | |__________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + A| Cyst | | Infarct | 4 | Nephropathy | 1 3 1 1 1 1 2 1 1 2 1 2 2 2 2 1 2 3 2 | Renal Tubule, Accumulation, Hyaline | | Droplet | 2 1 | Renal Tubule, Hyperplasia, Focal | 1 | Renal Tubule, Pigmentation | | |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | __________________________________________|__________________________________________________________________________ Page 75 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + A + + + + + + + + + + + + + + + + + + + +| 48 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + A + + + + + + + + + A + + + + + + + + + +| 46 | Congestion | | 1 3.0| |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + A + + + + + + + + + A + + + + + + + + + +| 45 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + A + + + + + + + + + A + + + + + + + + + +| 45 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis, Focal | | 1 2.0| Basophilic Focus | X X X X X X X X X X X X X | 26 | Clear Cell Focus | X X X X X X X X X X X X X X | 28 | Degeneration, Cystic, Focal | 2 1 1 | 3 1.3| Eosinophilic Focus | X X| 3 | Hepatodiaphragmatic Nodule | X | 2 | Histiocytosis | 2 2 2 2 1 2 1 1 2 1 1 2 2 1 1 1 2 1 1 1 2 2 1 2 1| 45 1.4| Infiltration Cellular, Mixed Cell | 1 | 5 1.2| Inflammation, Chronic | 2 1 1 1 1 1 1 1 2 2 1 1 1 1 1 2 1 1 | 32 1.2| Mixed Cell Focus | X X X | 7 | Bile Duct, Dilatation, Focal | 2 | 2 2.0| Bile Duct, Hyperplasia | 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 3 3 3 2 2 3 3 3| 48 2.9| Hepatocyte, Fatty Change, Focal | 1 1 1 3 2 1 2 1 1 2 1 | 24 1.8| Hepatocyte, Necrosis, Focal | 2 2 | 2 2.0| Hepatocyte, Vacuolization Cytoplasmic| 3 2 3 2 3 3 2 3 | 14 2.9| |__________________________________________________________________________|____________| Mesentery | + + + + + + +| 10 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 76 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Fat, Necrosis, Focal | 3 4 2 | 4 3.0| |__________________________________________________________________________|____________| Oral Mucosa | | 1 | Foreign Body | | 1 3.0| Inflammation, Chronic, Focal | | 1 3.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Acinus, Atrophy, Focal | 1 2 3 2 2 2 1 3 1 2 3 | 24 1.7| Duct, Cyst, Focal, Multiple | 1 2 2 2 2 2 2 | 12 1.8| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | 2 | 1 2.0| |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperkeratosis, Focal | 2 | 1 2.0| Ulcer | 3 3 | 2 3.0| Epithelium, Hyperplasia | 3 3 | 3 2.7| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Erosion | 2 | 1 2.0| Inflammation, Focal | 2 | 1 2.0| Ulcer | | 1 3.0| |__________________________________________________________________________|____________| Tongue | + +| 3 | Epithelium, Cyst | 2 | 1 2.0| |__________________________________________________________________________|____________| Tooth | + | 1 | Peridontal Tissue, Inflammation | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + | 1 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 77 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| CARDIOVASCULAR SYSTEM - cont | | | Cardiomyopathy | 2 2 1 2 2 2 2 1 1 2 2 2 2 1 1 2 3 1 2 2 1| 38 1.7| Thrombosis | | 3 3.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Adrenal Cortical Nodule | 1 1 1 1 | 6 1.2| Angiectasis | 2 | 1 2.0| Cytoplasmic Alteration, Focal | 2 | 2 1.5| Degeneration, Cystic | | 1 4.0| Necrosis | | 1 4.0| Vacuolization Cytoplasmic, Focal | 1 | 5 1.4| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal | | 1 1.0| Necrosis | | 1 3.0| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + I + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + I + + + + + + + + + + +| 49 | Cyst | X | 2 | Pars Distalis, Degeneration, Cystic, | | | Focal | 2 | 1 2.0| Pars Distalis, Hyperplasia, Focal | 2 | 1 2.0| Pars Distalis, Hypertrophy, Focal | 1 2 1 1 | 9 1.6| |__________________________________________________________________________|____________| Thyroid Gland | + + + + A + + + + + + + + + A + + + + + + + + + +| 46 | C-Cell, Hyperplasia | 1 2 1 4 4 1 1 1 1 | 28 1.6| Follicle, Cyst | X | 3 | Follicle, Degeneration, Focal | 1 3 | 4 1.5| Follicle, Mineralization | 1 1 1| 3 1.0| Follicular Cell, Hyperplasia, Focal | | 1 1.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 78 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENERAL BODY SYSTEM | | | |__________________________________________________________________________|____________| Peritoneum | + | 2 | |__________________________________________________________________________|____________| Tissue NOS | + + +| 4 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 3 2 | 3 2.7| Hyperplasia, Cystic | 2 | 1 2.0| Inflammation, Chronic | 2 1 2 1 1 2 2 2 1 1 2 2 1 1 | 28 1.6| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | 3 1 1 3 3 2 2 2 1 3 2 2| 24 2.0| Epithelium, Hyperplasia, Focal | 1 2 | 6 1.3| |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 3 3 3 1 3 | 10 2.8| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 3 2 | 3 2.7| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + +| 18 | Hyperplasia, Plasma Cell | | 1 3.0| Mediastinal, Ectasia | | 2 2.0| Mediastinal, Hemorrhage | 3 | 2 3.0| Mediastinal, Hyperplasia | 3 | 1 3.0| Mediastinal, Hyperplasia, Plasma Cell| 4 | 2 4.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 79 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Pancreatic, Hemorrhage | | 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M M + M M M M M M M M M M M M M M M M| 1 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Ectasia | | 1 3.0| Hyperplasia, Histiocytic | 3 | 1 3.0| |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + A + + + + + + + + + +| 48 | Fibrosis, Focal | 3 | 2 3.0| Hematopoietic Cell Proliferation | 3 | 1 3.0| Infarct | 3 | 1 3.0| Inflammation, Granulomatous | 3 | 2 3.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + A + + + + + + + + + +| 49 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + M M + + + + M + + + + +| 46 | Dilatation | 2 2 2 2| 7 2.6| Inflammation, Chronic, Focal | | 1 2.0| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | 2 | 1 2.0| Ulcer | 3 | 1 3.0| Epidermis, Hyperplasia, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Skeletal Muscle | +| 2 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 80 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| NERVOUS SYSTEM - cont | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 3 4 | 6 3.2| Hemorrhage, Focal | 2 3 | 4 2.5| Meninges, Congestion, Focal | | 1 2.0| |__________________________________________________________________________|____________| Peripheral Nerve | + | 3 | |__________________________________________________________________________|____________| Spinal Cord | + | 3 | Hemorrhage, Focal | | 1 1.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 2 | 1 2.0| Hemorrhage, Focal | | 1 3.0| Inflammation, Chronic, Focal | 2 | 3 2.0| Alveolar Epithelium, Hyperplasia, | | | Focal | 2 2 | 4 1.8| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Suppurative | 1| 1 1.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Ear | | 1 | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + + + + A + + + + + + + + + +| 47 | Cataract | | 1 3.0| Anterior Chamber, Exudate | 3 | 1 3.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 81 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 7| 7| 5| 7| 7| 7| 7| 7| 2| 7| 7| 6| 7| 7| 7| 4| 7| 7| 7| | DAY ON TEST | 3| 3| 3| 0| 9| 3| 3| 3| 7| 1| 3| 3| 3| 3| 7| 3| 3| 6| 3| 3| 3| 7| 3| 0| 3| | | 0| 0| 0| 0| 5| 0| 0| 0| 7| 2| 0| 4| 4| 4| 5| 4| 4| 5| 4| 4| 0| 7| 0| 0| 4| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| A | 625 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | |__________________________________________________________________________|____________| Lacrimal Gland | | 1 | |__________________________________________________________________________|____________| Zymbal's Gland | + | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Cyst | 3 | 1 3.0| Infarct | 1 | 2 2.5| Nephropathy | 1 1 1 3 1 1 1 3 2 2 1 2 1 1 2 2 1 1 2 1 2 1 2 2| 43 1.6| Renal Tubule, Accumulation, Hyaline | | | Droplet | 3 | 3 2.0| Renal Tubule, Hyperplasia, Focal | | 1 1.0| Renal Tubule, Pigmentation | 3 | 1 3.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hemorrhage | 3 | 1 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 82 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 4| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| DAY ON TEST | 3| 3| 9| 3| 4| 3| 3| 3| 9| 3| 3| 3| 9| 0| 4| 0| 3| 3| 3| 3| 3| 5| 3| 1| 3| | 0| 0| 4| 4| 2| 4| 4| 4| 4| 8| 5| 5| 3| 5| 2| 6| 0| 0| 0| 0| 0| 3| 4| 2| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1250 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + A + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + A + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + A + + + + + + + + + + A + A + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + A + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + + A + + + + + + + + + + A + A + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Ileum | + + A + + + + + + + + + + A + A + + + + + + + + +| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy, Focal | 2 | Basophilic Focus | X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X X X X X X X X X| Degeneration, Cystic, Focal | | Eosinophilic Focus | X X X X X | Hepatodiaphragmatic Nodule | X X X | Histiocytosis | 2 2 2 2 2 2 2 2 2 1 1 2 2 2 1 2 2 2 2 1 2 2 2 2 2| Hyperplasia, Focal, Histiocytic | | Infiltration Cellular, Mixed Cell | 1 2 2 | Inflammation, Chronic | 2 1 1 1 2 2 1 1 1 2 1 2 2 1| Mixed Cell Focus | X X X X X X X| Thrombosis | 3 | Bile Duct, Dilatation, Focal | 1 | Bile Duct, Hyperplasia | 3 2 3 3 3 3 3 3 3 2 3 3 2 3 3 3 3 3 3 3 3 3 3 2 3| Hepatocyte, Fatty Change, Focal | 2 2 1 1 1 2 1 2 2 2 3 2 2 2 2 1 2 2| Hepatocyte, Necrosis, Focal | 2 | Hepatocyte, Vacuolization Cytoplasmic| 3 2 3 1 3 3 | |__________________________________________________________________________| Mesentery | + + + + + + + + | Inflammation, Chronic | 2 | Fat, Necrosis, Focal | 2 3 3 3 4 3 | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 83 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 4| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| DAY ON TEST | 3| 3| 9| 3| 4| 3| 3| 3| 9| 3| 3| 3| 9| 0| 4| 0| 3| 3| 3| 3| 3| 5| 3| 1| 3| | 0| 0| 4| 4| 2| 4| 4| 4| 4| 8| 5| 5| 3| 5| 2| 6| 0| 0| 0| 0| 0| 3| 4| 2| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1250 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | Oral Mucosa | | Hyperplasia, Focal, Squamous | | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + A + + + + + + + + + + +| Angiectasis | | Acinus, Atrophy, Diffuse | | Acinus, Atrophy, Focal | 2 1 3 2 3 3 1 3 3 2 2 3 3| Duct, Cyst, Focal, Multiple | 1 2 2 2 3 2 3 1 2 | |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 | Ulcer | 3 2 | Epithelium, Hyperplasia | 2 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Erosion | 1 | Hyperplasia, Focal, Histiocytic | | Ulcer | 2 | Epithelium, Hyperplasia | 2 | |__________________________________________________________________________| Tongue | | Epithelium, Hyperplasia | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + + | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 2 1 1 2 2 1 1 2 1 1 1 2 2 2 2 1 | Thrombosis | 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 1 | Cytoplasmic Alteration, Focal | | __________________________________________|__________________________________________________________________________| Page 84 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 4| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| DAY ON TEST | 3| 3| 9| 3| 4| 3| 3| 3| 9| 3| 3| 3| 9| 0| 4| 0| 3| 3| 3| 3| 3| 5| 3| 1| 3| | 0| 0| 4| 4| 2| 4| 4| 4| 4| 8| 5| 5| 3| 5| 2| 6| 0| 0| 0| 0| 0| 3| 4| 2| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1250 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | Necrosis | | Vacuolization Cytoplasmic, Focal | 2 1 1 1 1 2 2 2 1 1 2 1| |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal | 2 1 1 | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Pituitary Gland | + + + + + M + + + + + + + A + + + + + + + + + + +| Angiectasis | | Cyst | X X X X | Pars Distalis, Cytoplasmic | | Alteration, Focal | | Pars Distalis, Hyperplasia, Focal | | Pars Distalis, Hypertrophy, Focal | 3 1 1 1 2 1 3 2 1 1| |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + A + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 1 1 2 1 2 1 1 1 1 1| Follicle, Cyst | | Follicle, Degeneration, Focal | 1 2 2 1 | Follicle, Mineralization | 1 1 1 1 1 | Follicular Cell, Hyperplasia, Focal | 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Peritoneum | + + | Inflammation, Chronic, Focal | 2 | |__________________________________________________________________________| Tissue NOS | + + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | | |__________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 85 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 4| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| DAY ON TEST | 3| 3| 9| 3| 4| 3| 3| 3| 9| 3| 3| 3| 9| 0| 4| 0| 3| 3| 3| 3| 3| 5| 3| 1| 3| | 0| 0| 4| 4| 2| 4| 4| 4| 4| 8| 5| 5| 3| 5| 2| 6| 0| 0| 0| 0| 0| 3| 4| 2| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1250 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Degeneration, Cystic | 2 | Inflammation, Chronic | 1 3 2 2 2 2 | |__________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 1 1 1 2 1 3 1 3 3 1 2 1 2 3| Epithelium, Hyperplasia, Focal | 2 1 1 1 | |__________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 3 3 3| Interstitial Cell, Hyperplasia, Focal| 2 2 2 2 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 3 | |__________________________________________________________________________| Lymph Node | + + + + + + + + + + + + + + + | Deep Cervical, Hyperplasia, | | Histiocytic | 3 | Mediastinal, Hemorrhage | 3 3 | Mediastinal, Hyperplasia, Histiocytic| 3 | Mediastinal, Hyperplasia, Plasma Cell| 3 | Pancreatic, Hemorrhage | 2 2 | Pancreatic, Hyperplasia, Histiocytic | | |__________________________________________________________________________| Lymph Node, Mandibular | M M M M M M M M M M M M + M M M M M M M M M M M M| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + A + + + + + + + + + + +| |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + A + + + + + + + + + + +| Accessory Spleen | | Fibrosis, Focal | 3 | Hematopoietic Cell Proliferation | 2 | Hemorrhage | 3 | Inflammation, Granulomatous | 1 | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 86 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 4| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| DAY ON TEST | 3| 3| 9| 3| 4| 3| 3| 3| 9| 3| 3| 3| 9| 0| 4| 0| 3| 3| 3| 3| 3| 5| 3| 1| 3| | 0| 0| 4| 4| 2| 4| 4| 4| 4| 8| 5| 5| 3| 5| 2| 6| 0| 0| 0| 0| 0| 3| 4| 2| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1250 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | Thymus | + + + + + + + + M + + M + + + + + + M + + + + + +| Angiectasis | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + M + + + + M + + M + + + + M M M + + + + M +| Dilatation | | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | 3 | Hyperkeratosis, Focal | 2 | Epidermis, Hyperplasia, Focal | 1 | Subcutaneous Tissue, Edema | 3 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | + + | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | | Hemorrhage, Focal | 1 3 | |__________________________________________________________________________| Peripheral Nerve | + | |__________________________________________________________________________| Spinal Cord | + | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage, Focal | 2 3 | Infiltration Cellular, Mixed Cell | | Inflammation, Chronic, Focal | 1 | Alveolar Epithelium, Hyperplasia, | | Focal | 1 | __________________________________________|__________________________________________________________________________| Page 87 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 6| 7| 7| 7| 5| 5| 7| 7| 4| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| DAY ON TEST | 3| 3| 9| 3| 4| 3| 3| 3| 9| 3| 3| 3| 9| 0| 4| 0| 3| 3| 3| 3| 3| 5| 3| 1| 3| | 0| 0| 4| 4| 2| 4| 4| 4| 4| 8| 5| 5| 3| 5| 2| 6| 0| 0| 0| 0| 0| 3| 4| 2| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1250 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM - cont | | Alveolus, Proteinosis | | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 1 | Inflammation, Suppurative | 2 2 2 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + A + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal, Lymphoid | | Inflammation | | |__________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + A + + + + + + + + +| Infarct | | Nephropathy | 1 2 1 1 2 1 1 2 1 1 1 1 1 2 1 1 1 2 1 1 1 1 2| Pelvis, Dilatation | 2 | Renal Tubule, Accumulation, Hyaline | | Droplet | 2 4 | Renal Tubule, Pigmentation | 3 | |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Muscularis, Hyperplasia | 3 | Transitional Epithelium, Hyperplasia | 2 | __________________________________________|__________________________________________________________________________ Page 88 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + A + + + + + + + + + + + + + + + + +| 46 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + A A + + + + + + + + + + + + + + + +| 47 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + A A + + + + + + + + + + + + + + + +| 45 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + A A + + + + + + + + + + + + + + + +| 45 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy, Focal | | 1 2.0| Basophilic Focus | X X X X X X X X X X X X X X X X| 30 | Clear Cell Focus | X X X X X X X X X X X X X X X X | 29 | Degeneration, Cystic, Focal | 2 | 1 2.0| Eosinophilic Focus | X X | 7 | Hepatodiaphragmatic Nodule | X X| 5 | Histiocytosis | 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2| 50 1.9| Hyperplasia, Focal, Histiocytic | 2 | 1 2.0| Infiltration Cellular, Mixed Cell | 2 1| 5 1.6| Inflammation, Chronic | 1 1 1 2 1 1 2 1 1 1 2 1 1 1 1 1 1| 31 1.3| Mixed Cell Focus | X X X X| 11 | Thrombosis | | 1 3.0| Bile Duct, Dilatation, Focal | 2 | 2 1.5| Bile Duct, Hyperplasia | 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 3 3 3 1| 49 2.9| Hepatocyte, Fatty Change, Focal | 1 2 2 1 2 3 2 2 1 2 2 3 2 2 2 2 2 3 2| 37 1.9| Hepatocyte, Necrosis, Focal | | 1 2.0| Hepatocyte, Vacuolization Cytoplasmic| 2 3 3 1 1 2| 12 2.3| |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 89 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Mesentery | + + + | 11 | Inflammation, Chronic | | 1 2.0| Fat, Necrosis, Focal | | 6 3.0| |__________________________________________________________________________|____________| Oral Mucosa | + | 1 | Hyperplasia, Focal, Squamous | 2 | 1 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | Angiectasis | 3 | 1 3.0| Acinus, Atrophy, Diffuse | 3 | 1 3.0| Acinus, Atrophy, Focal | 2 1 1 3 2 1 1 2 1 2 3 | 24 2.1| Duct, Cyst, Focal, Multiple | 2 1 1 2 2 2 2 | 16 1.9| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation | | 1 2.0| Ulcer | | 2 2.5| Epithelium, Hyperplasia | | 2 2.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + A + + + + + + + + + + + + + + + + +| 49 | Erosion | | 1 1.0| Hyperplasia, Focal, Histiocytic | 1 | 1 1.0| Ulcer | 3 | 2 2.5| Epithelium, Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Tongue | + | 1 | Epithelium, Hyperplasia | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | | 2 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 90 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| CARDIOVASCULAR SYSTEM - cont | | | Cardiomyopathy | 2 2 1 3 2 1 3 1 2 2 2 1 2 2 2 2 1 1 1 | 36 1.6| Thrombosis | | 1 3.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Accessory Adrenal Cortical Nodule | 1 1 2 1 | 5 1.2| Cytoplasmic Alteration, Focal | 2 | 1 2.0| Necrosis | 2 | 1 2.0| Vacuolization Cytoplasmic, Focal | 1 | 13 1.4| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal | | 3 1.3| |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + A + + + + + + + + + + + + + + + + +| 49 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + M I + + + + + + +| 48 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Angiectasis | 2 3 3 2 | 4 2.5| Cyst | X X | 6 | Pars Distalis, Cytoplasmic | | | Alteration, Focal | 1 2 | 2 1.5| Pars Distalis, Hyperplasia, Focal | 2 | 1 2.0| Pars Distalis, Hypertrophy, Focal | 3 2 2 2 3 1 2 3 1 1| 20 1.8| |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | C-Cell, Hyperplasia | 1 2 1 3 4 2 1 1 1 1 3 1 1 1| 26 1.5| Follicle, Cyst | X | 1 | Follicle, Degeneration, Focal | 1 1 1 1 | 8 1.3| Follicle, Mineralization | | 5 1.0| Follicular Cell, Hyperplasia, Focal | | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 91 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENERAL BODY SYSTEM - cont | | | |__________________________________________________________________________|____________| Peritoneum | + | 3 | Inflammation, Chronic, Focal | | 1 2.0| |__________________________________________________________________________|____________| Tissue NOS | + + + + | 6 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | 2 | 1 2.0| |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 3 | 2 2.5| Inflammation, Chronic | 2 2 2 2 1 2 2 1 2 2 2 2 2 1 2 | 21 1.9| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | 1 2 1 1 2 3 2 1 1 1 1 2 2 1| 28 1.6| Epithelium, Hyperplasia, Focal | 1 | 5 1.2| |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 3 3 3 3 | 8 3.0| Interstitial Cell, Hyperplasia, Focal| 1 | 6 1.8| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + A + + + + + + + + + + + + A + + + +| 48 | Hyperplasia | | 2 3.0| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + + + +| 26 | Deep Cervical, Hyperplasia, | | | Histiocytic | | 1 3.0| Mediastinal, Hemorrhage | | 2 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 92 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Mediastinal, Hyperplasia, Histiocytic| 3 | 2 3.0| Mediastinal, Hyperplasia, Plasma Cell| 3 | 2 3.0| Pancreatic, Hemorrhage | 3 | 3 2.3| Pancreatic, Hyperplasia, Histiocytic | 3| 1 3.0| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M M M M M M M M M M M M M M M M M M M| 1 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | |__________________________________________________________________________|____________| Spleen | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | Accessory Spleen | X | 1 | Fibrosis, Focal | 3 | 2 3.0| Hematopoietic Cell Proliferation | | 1 2.0| Hemorrhage | | 1 3.0| Inflammation, Granulomatous | | 1 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + I + + + + + + + + + + + + + + +| 46 | Angiectasis | | 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + M + + + + + + + + + + M| 41 | Dilatation | 2 | 1 2.0| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | 2| 2 2.5| Hyperkeratosis, Focal | | 1 2.0| Epidermis, Hyperplasia, Focal | | 1 1.0| Subcutaneous Tissue, Edema | | 1 3.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 93 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| MUSCULOSKELETAL SYSTEM - cont | | | Skeletal Muscle | | 2 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 3 | 1 3.0| Hemorrhage, Focal | 3 | 3 2.3| |__________________________________________________________________________|____________| Peripheral Nerve | | 1 | |__________________________________________________________________________|____________| Spinal Cord | + | 2 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hemorrhage, Focal | 2 | 3 2.3| Infiltration Cellular, Mixed Cell | 2| 1 2.0| Inflammation, Chronic, Focal | 1 2 1 | 4 1.3| Alveolar Epithelium, Hyperplasia, | | | Focal | 2 2 | 3 1.7| Alveolus, Proteinosis | 3 | 1 3.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | | 1 1.0| Inflammation, Suppurative | 1 | 4 1.8| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal, Lymphoid | 2 | 1 2.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 94 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| 7| 7| 7| 5| | DAY ON TEST | 5| 0| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 9| 0| 3| 3| 3| 3| | | 0| 0| 0| 0| 0| 4| 4| 5| 7| 5| 5| 5| 5| 5| 4| 4| 4| 0| 0| 8| 0| 0| 0| 5| 1| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | 1250 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Inflammation | 1 3 | 2 2.0| |__________________________________________________________________________|____________| Zymbal's Gland | + +| 2 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + A + + + + + + + + + + + + + + + + +| 48 | Infarct | 3 | 1 3.0| Nephropathy | 3 1 1 2 1 2 2 2 1 1 2 2 1 2 1 1 1 2 1 3 1 2 2 2| 47 1.4| Pelvis, Dilatation | | 1 2.0| Renal Tubule, Accumulation, Hyaline | | | Droplet | | 2 3.0| Renal Tubule, Pigmentation | 3 | 2 3.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Muscularis, Hyperplasia | | 1 3.0| Transitional Epithelium, Hyperplasia | | 1 2.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 95 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 6| 6| 7| 6| 7| 3| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 3| 6| 7| 7| 6| 7| 7| 7| 5| DAY ON TEST | 2| 8| 3| 5| 3| 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 6| 0| 3| 3| 7| 3| 3| 3| 8| | 2| 9| 4| 0| 4| 4| 0| 0| 0| 4| 4| 4| 4| 4| 2| 4| 9| 7| 4| 4| 0| 4| 4| 4| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2500 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM | | |__________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + A + + A + + A + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + A + + + + + A + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + A + + A + + A + + + +| Edema | 3 | |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + A + + A + + A + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + M + + + + + + + + + + + + A + + M + + A + + + A| |__________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + A + + A + + A + + + A| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X X X X X X X X X X X X X | Clear Cell Focus | X X X X X X X X X X X X X X | Degeneration, Cystic, Focal | 2 1 2 2 2 3 | Eosinophilic Focus | X X X X X X | Hepatodiaphragmatic Nodule | | Histiocytosis | 3 2 2 3 2 2 2 2 2 2 3 2 3 2 2 3 1 3 2 2 3 2 2 2 3| Hyperplasia, Focal, Histiocytic | | Infiltration Cellular, Mixed Cell | 2 2 1 1 1 1 1 1 | Inflammation, Chronic | 2 2 1 1 2 1 1 1 1 2 1 1 1 2 | Mixed Cell Focus | X X X X X X X X X X X X X | Bile Duct, Dilatation, Focal | | Bile Duct, Hyperplasia | 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3| Hepatocyte, Fatty Change, Focal | 1 3 3 3 3 2 3 3 2 2 2 3 2 2 2| Hepatocyte, Vacuolization Cytoplasmic| 2 2 2 3 2 2 2 3 2 4 2 | |__________________________________________________________________________| Mesentery | + + + + + + | Inflammation, Chronic | | Artery, Thrombosis | 3 | Fat, Necrosis, Focal | 3 3 2 3 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + A + + + + + + +| __________________________________________|__________________________________________________________________________| Page 96 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 6| 6| 7| 6| 7| 3| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 3| 6| 7| 7| 6| 7| 7| 7| 5| DAY ON TEST | 2| 8| 3| 5| 3| 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 6| 0| 3| 3| 7| 3| 3| 3| 8| | 2| 9| 4| 0| 4| 4| 0| 0| 0| 4| 4| 4| 4| 4| 2| 4| 9| 7| 4| 4| 0| 4| 4| 4| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2500 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ALIMENTARY SYSTEM - cont | | Inflammation, Chronic | | Acinus, Atrophy, Focal | 2 2 2 3 1 1 1 2 1 3 1 | Duct, Cyst, Focal, Multiple | 2 2 2 2 1 | |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + A + + + + + + +| Diverticulum | 2 | Inflammation | 2 | Ulcer | 3 2 | Epithelium, Hyperplasia | 1 2 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + A + + + + + + +| Cyst | 2 | Erosion | 1 3 1 | |__________________________________________________________________________| Tongue | + | Epithelium, Hyperplasia | 1 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + | |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 2 1 2 2 1 2 2 1 2 1 3 2 2 2 2 2| Thrombosis | 2 4 3| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Adrenal Cortical Nodule | 1 1 1 1 1 | Cytoplasmic Alteration, Focal | 1 | Hyperplasia, Focal | 1 | Vacuolization Cytoplasmic, Focal | 2 2 1 | Capsule, Hyperplasia, Focal | 2 | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 97 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 6| 6| 7| 6| 7| 3| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 3| 6| 7| 7| 6| 7| 7| 7| 5| DAY ON TEST | 2| 8| 3| 5| 3| 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 6| 0| 3| 3| 7| 3| 3| 3| 8| | 2| 9| 4| 0| 4| 4| 0| 0| 0| 4| 4| 4| 4| 4| 2| 4| 9| 7| 4| 4| 0| 4| 4| 4| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2500 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| ENDOCRINE SYSTEM - cont | | Islets, Pancreatic | + + + + + + + + + + + + + + + + + A + + + + + + +| Hyperplasia | 2 | |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal | | |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + I M + + + + + + + +| Angiectasis | 3 | Cyst | X | Fibrosis, Focal | 3 | Hemorrhage | 3 | Pars Distalis, Hyperplasia, Focal | | Pars Distalis, Hypertrophy, Focal | 1 3 2 4 2 2 1 2 3 | |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + A + + A + + A + + + A| C-Cell, Hyperplasia | 1 1 4 1 1 2 1 2 1 1 2 2 2 2 1 2 | Follicle, Cyst | X | Follicle, Degeneration, Focal | 2 1 | Follicle, Mineralization | 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | |__________________________________________________________________________| Peritoneum | | |__________________________________________________________________________| Tissue NOS | + + | Inflammation, Chronic | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Coagulating Gland | | Inflammation, Chronic | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | 3 | Hemorrhage | 3 | |__________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + M + + + +| Degeneration, Cystic | 3 2 3| __________________________________________|__________________________________________________________________________| Page 98 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 6| 6| 7| 6| 7| 3| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 3| 6| 7| 7| 6| 7| 7| 7| 5| DAY ON TEST | 2| 8| 3| 5| 3| 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 6| 0| 3| 3| 7| 3| 3| 3| 8| | 2| 9| 4| 0| 4| 4| 0| 0| 0| 4| 4| 4| 4| 4| 2| 4| 9| 7| 4| 4| 0| 4| 4| 4| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2500 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | Inflammation, Chronic | 2 2 1 1 1 1 1 1 2 2 2 2 1 | |__________________________________________________________________________| Prostate | + I + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 1 1 2 2 3 2 2 2 2 3 2 1 2 2 2 3 2 1 2 3 | |__________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | | |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 3 3 3 3 3| Interstitial Cell, Hyperplasia, Focal| 2 1 1 2| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | |__________________________________________________________________________| Lymph Node | + + + + + + + + + + + + +| Mediastinal, Ectasia | 3 3 | Mediastinal, Hemorrhage | 3 | Mediastinal, Hyperplasia, Histiocytic| 3 | Mediastinal, Hyperplasia, Plasma Cell| 3 | Pancreatic, Fibrosis | 3 | Pancreatic, Hemorrhage | 3 | Pancreatic, Hyperplasia, Histiocytic | 3 3 | |__________________________________________________________________________| Lymph Node, Mandibular | M M M M M + M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + M + + + + + + +| Hemorrhage | 3 | Hyperplasia, Histiocytic | 3 | Hyperplasia, Lymphoid | 2 | |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | X X | Hematopoietic Cell Proliferation | | Hyperplasia, Lymphoid | | Infarct | 3 | __________________________________________|__________________________________________________________________________| Page 99 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 6| 6| 7| 6| 7| 3| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 3| 6| 7| 7| 6| 7| 7| 7| 5| DAY ON TEST | 2| 8| 3| 5| 3| 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 6| 0| 3| 3| 7| 3| 3| 3| 8| | 2| 9| 4| 0| 4| 4| 0| 0| 0| 4| 4| 4| 4| 4| 2| 4| 9| 7| 4| 4| 0| 4| 4| 4| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2500 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | Inflammation, Granulomatous | 3 1 | |__________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + M| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + M + + + + + + + + M M| Dilatation | 4 | Fibrosis | 3 | |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | | Inflammation, Focal | 1 | Subcutaneous Tissue, Fibrosis, Focal | 2 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression, Focal | | Hemorrhage, Focal | 3 3 | |__________________________________________________________________________| Peripheral Nerve | + + | |__________________________________________________________________________| Spinal Cord | + + | Hemorrhage, Focal | 2 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 | Infiltration Cellular, Mixed Cell | 2 2 | Inflammation, Chronic, Focal | | Inflammation, Focal | 1 | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 100 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 _____________________________________________________________________________________________________________________ | 6| 6| 7| 6| 7| 3| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 3| 6| 7| 7| 6| 7| 7| 7| 5| DAY ON TEST | 2| 8| 3| 5| 3| 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 6| 0| 3| 3| 7| 3| 3| 3| 8| | 2| 9| 4| 0| 4| 4| 0| 0| 0| 4| 4| 4| 4| 4| 2| 4| 9| 7| 4| 4| 0| 4| 4| 4| 4| __________________________________________|__________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2500 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| __________________________________________|__________________________________________________________________________| RESPIRATORY SYSTEM - cont | | Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 2 | Inflammation, Suppurative | 3 1 | Nasolacrimal Duct, Inflammation | 2 2 1 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + A + + A + + A + + + +| Cataract | | Anterior Chamber, Exudate | 2 | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Infarct | 3 2 | Nephropathy | 3 2 1 1 2 1 2 2 2 1 2 1 2 2 2 2 1 2 2 1 2 1 | Pelvis, Dilatation | | Renal Tubule, Accumulation, Hyaline | | Droplet | 2 | |__________________________________________________________________________| Urethra | | Muscularis, Inflammation, Chronic | | |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Inflammation | | __________________________________________|__________________________________________________________________________ Page 101 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + A + + + + + + + + + + + + + + + + + + +| 46 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + A + + + + + + + + + + + + + + + + + + +| 47 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + A + + + + + + + + + + + + + + + + + + +| 46 | Edema | | 1 3.0| |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + A + + + + + + + + + + + + + + + + + A +| 43 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + A + + + + + + + + + + + + + + + + + A +| 44 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Basophilic Focus | X X X X X X X X X X X X X X X X X X X X| 36 | Clear Cell Focus | X X X X X X X X X X X X X X X X X| 31 | Degeneration, Cystic, Focal | 2 | 7 2.0| Eosinophilic Focus | X X X X X X| 12 | Hepatodiaphragmatic Nodule | X X X X | 4 | Histiocytosis | 2 2 2 3 2 3 2 2 3 2 2 2 2 2 2 2 3 2 3 2 2 2 3 2 2| 50 2.3| Hyperplasia, Focal, Histiocytic | 2 2 2 | 3 2.0| Infiltration Cellular, Mixed Cell | 1 1 1 1 1 1 1 1 1| 17 1.1| Inflammation, Chronic | 2 1 3 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| 36 1.3| Mixed Cell Focus | X X X X X X X X X X X X X X | 27 | Bile Duct, Dilatation, Focal | 2 1 | 2 1.5| Bile Duct, Hyperplasia | 3 3 3 3 2 3 3 3 3 2 3 3 3 3 3 3 3 3 3 3 3 3 3| 42 3.0| Hepatocyte, Fatty Change, Focal | 3 2 1 2 2 3 3 3 2 3 2 3 3 3 3 3 3 3| 33 2.5| Hepatocyte, Vacuolization Cytoplasmic| 3 2 1 2 3 2 3 | 18 2.3| |__________________________________________________________________________|____________| Mesentery | + + + + | 10 | Inflammation, Chronic | 3 | 1 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 102 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Artery, Thrombosis | | 1 3.0| Fat, Necrosis, Focal | 3 | 5 2.8| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Inflammation, Chronic | 3 | 1 3.0| Acinus, Atrophy, Focal | 2 1 3 1 2 2 3 1 1 1 3 3 4 1| 25 1.9| Duct, Cyst, Focal, Multiple | 3 2 2 2 1 | 10 1.9| |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Diverticulum | | 1 2.0| Inflammation | 1 3 | 3 2.0| Ulcer | 2 | 3 2.3| Epithelium, Hyperplasia | 2 | 4 1.8| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Cyst | | 1 2.0| Erosion | 2 2 2 | 6 1.8| |__________________________________________________________________________|____________| Tongue | | 1 | Epithelium, Hyperplasia | | 1 1.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | | 1 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 2 1 1 2 2 2 2 2 2 2 2 1 3 3 2 2 1 1 2 1| 39 1.8| Thrombosis | 2 | 4 2.8| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 103 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | Accessory Adrenal Cortical Nodule | 1 1 1 1| 9 1.0| Cytoplasmic Alteration, Focal | 1 | 2 1.0| Hyperplasia, Focal | | 1 1.0| Vacuolization Cytoplasmic, Focal | 1 1 1 1 | 7 1.3| Capsule, Hyperplasia, Focal | | 1 2.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Focal | 3 2 | 2 2.5| |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Angiectasis | | 1 3.0| Cyst | | 1 | Fibrosis, Focal | | 1 3.0| Hemorrhage | | 1 3.0| Pars Distalis, Hyperplasia, Focal | 2 | 1 2.0| Pars Distalis, Hypertrophy, Focal | 2 2 2 3 1 2 2 2 2 1 2 2 2| 22 2.0| |__________________________________________________________________________|____________| Thyroid Gland | + + + + + A + + + + + + + + + + + + + + + + + A +| 44 | C-Cell, Hyperplasia | 2 2 1 2 2 2 1 1 1 2 1 3 2| 29 1.7| Follicle, Cyst | X X X X | 5 | Follicle, Degeneration, Focal | 1 1 | 4 1.3| Follicle, Mineralization | 1 1 1 1 1 | 6 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | |__________________________________________________________________________|____________| Peritoneum | + | 1 | |__________________________________________________________________________|____________| Tissue NOS | + + + | 5 | Inflammation, Chronic | 3 | 1 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 104 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Coagulating Gland | + | 1 | Inflammation, Chronic | 2 | 1 2.0| |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Granuloma Sperm | | 1 3.0| Hemorrhage | | 1 3.0| |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Degeneration, Cystic | | 3 2.7| Inflammation, Chronic | 2 2 2 2 2 2 2 2 1 2| 23 1.7| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Inflammation, Chronic | 3 2 2 4 3 1 2 2 2 1 1 1 3 2 2 1| 36 2.0| |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Dilatation | 3 | 1 3.0| |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 3 3 3 4 | 10 3.1| Interstitial Cell, Hyperplasia, Focal| 2 2 1 | 7 1.6| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 3 3 | 4 2.5| |__________________________________________________________________________|____________| Lymph Node | + + + + + + + + + + + + + +| 27 | Mediastinal, Ectasia | 3 | 3 3.0| Mediastinal, Hemorrhage | 3 3 | 3 3.0| Mediastinal, Hyperplasia, Histiocytic| 3 3| 3 3.0| Mediastinal, Hyperplasia, Plasma Cell| | 1 3.0| Pancreatic, Fibrosis | | 1 3.0| Pancreatic, Hemorrhage | | 1 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 105 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Pancreatic, Hyperplasia, Histiocytic | 3 3 | 4 3.0| |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M M M M M M M M M + M M M M M M M M M M M M M| 2 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hemorrhage | | 1 3.0| Hyperplasia, Histiocytic | 3 | 2 3.0| Hyperplasia, Lymphoid | | 1 2.0| |__________________________________________________________________________|____________| Spleen | + + + + + A + + + + + + + + + + + + + + + + + + +| 49 | Accessory Spleen | X | 3 | Hematopoietic Cell Proliferation | 2 | 1 2.0| Hyperplasia, Lymphoid | 3 | 1 3.0| Infarct | 3 | 2 3.0| Inflammation, Granulomatous | | 2 2.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + M + M + + + M I + + + + + +| 45 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + M + + + + + + + + + + + M + +| 45 | Dilatation | 2 | 2 3.0| Fibrosis | | 1 3.0| |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | 3| 1 3.0| Inflammation, Focal | | 1 1.0| Subcutaneous Tissue, Fibrosis, Focal | | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 106 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| NERVOUS SYSTEM - cont | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Compression, Focal | 2 | 1 2.0| Hemorrhage, Focal | 1 | 3 2.3| |__________________________________________________________________________|____________| Peripheral Nerve | + | 3 | |__________________________________________________________________________|____________| Spinal Cord | + | 3 | Hemorrhage, Focal | | 1 2.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Congestion | 3 | 2 3.0| Infiltration Cellular, Mixed Cell | | 2 2.0| Inflammation, Chronic, Focal | 1 1 | 2 1.0| Inflammation, Focal | | 1 1.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | | 1 2.0| Inflammation, Suppurative | | 2 2.0| Nasolacrimal Duct, Inflammation | 3 | 4 2.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + A + + + + + + + + + + + + + + + + + A +| 45 | Cataract | 2 2 | 2 2.0| Anterior Chamber, Exudate | 3 | 2 2.5| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 107 NTP Experiment-Test: 92013-05 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 4-METHYLIMIDAZOLE Date: 12/06/04 Route: DOSED FEED Time: 08:41:26 __________________________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 6| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 6| 7| 7| 7| 6| 6| 7| | DAY ON TEST | 3| 3| 3| 3| 5| 5| 5| 3| 2| 2| 2| 2| 3| 2| 2| 2| 2| 3| 6| 3| 3| 3| 6| 9| 3| | | 5| 5| 4| 4| 0| 1| 3| 0| 9| 9| 9| 8| 5| 2| 9| 9| 9| 0| 3| 0| 4| 4| 6| 3| 0| | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| A | 2500 PPM | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | _____________________________________________________________________________________________________________________|____________| URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Infarct | 2 2 | 4 2.3| Nephropathy | 2 2 2 2 1 1 1 2 2 2 1 1 1 3 2 2 2 1 3 2 2 2 1 1| 46 1.7| Pelvis, Dilatation | 3 | 1 3.0| Renal Tubule, Accumulation, Hyaline | | | Droplet | 2 | 2 2.0| |__________________________________________________________________________|____________| Urethra | + | 1 | Muscularis, Inflammation, Chronic | 3 | 1 3.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hemorrhage | 4 | 1 4.0| Inflammation | 3 | 1 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 108 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------