TDMS Study 05185-03 Pathology Tables
NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 Facility: I. I. T. Research Institute Chemical CAS #: 542-56-3 Lock Date: 05/22/92 Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All Page 1 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 7| 7| 6| 6| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 5| 6| 3| 3| 3| 3| 3| 0| 1| 4| 5| 3| 3| 4| 7| 3| 3| 3| 0| 3| | 3| 4| 3| 3| 4| 2| 8| 4| 5| 3| 5| 4| 2| 6| 1| 8| 5| 4| 6| 1| 5| 5| 5| 2| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + M + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 4 | Necrosis | 4 | __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + A + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + A + + + + + + + + + + +| Inflammation | 2 | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 | Basophilic Focus, Multiple | 2 2 1 2 2 2 2 2 2 2 2 2 2 2 1| Clear Cell Focus | | Congestion | | Developmental Malformation | 2 | Eosinophilic Focus | | Fatty Change | 4 2 2 2 1 3 | Hematopoietic Cell Proliferation | 1 | Hemorrhage | | Hepatodiaphragmatic Nodule | X X | Inflammation | 1 | Mixed Cell Focus | | Necrosis | 2 2 | __________________________________________________________________________| Mesentery | + | Fat, Necrosis | 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | | Acinar Cell, Atrophy | 1 2 1 1 2 2 2 1 2| __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 | Ulcer | 3 1 | Ulcer, Multiple | 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | Ulcer | 3 2 | Ulcer, Multiple | 3 | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 | Atrium, Thrombosis | 3 2 | _____________________________________________________________________________________________________________________| Page 2 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 7| 7| 6| 6| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 5| 6| 3| 3| 3| 3| 3| 0| 1| 4| 5| 3| 3| 4| 7| 3| 3| 3| 0| 3| | 3| 4| 3| 3| 4| 2| 8| 4| 5| 3| 5| 4| 2| 6| 1| 8| 5| 4| 6| 1| 5| 5| 5| 2| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 2 | Cyst | 3 | Degeneration | | Hemorrhage | | Hyperplasia | 1 1 | Hypertrophy | 1 | Necrosis | | Vacuolization Cytoplasmic | 1 1 2| __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Hyperplasia | 1 | __________________________________________________________________________| Islets, Pancreatic | + + + + + | __________________________________________________________________________| Parathyroid Gland | + + + + + + + + + M + + + + + + + + M + + + + M +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 2 3 | Hyperplasia | 3 | Pars Distalis, Angiectasis | 1 3 4 2| Pars Distalis, Cyst | 2 2 3 2 2 2 2 | Pars Distalis, Hyperplasia | 3 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 2 2 1 2| Follicle, Dilatation | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 2 1 2 3 3 2 3 2 3 2 3 2| Hyperplasia | 2 2 | Inflammation | | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 3 3 | Corpus Luteum, Hyperplasia | 3 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | | Hemorrhage | | Bilateral, Dilatation | 2 | Endometrium, Hyperplasia | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 3 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 7| 7| 6| 6| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 5| 6| 3| 3| 3| 3| 3| 0| 1| 4| 5| 3| 3| 4| 7| 3| 3| 3| 0| 3| | 3| 4| 3| 3| 4| 2| 8| 4| 5| 3| 5| 4| 2| 6| 1| 8| 5| 4| 6| 1| 5| 5| 5| 2| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 4 3 4 | __________________________________________________________________________| Lymph Node | | Lumbar, Cyst | | Lumbar, Hyperplasia, Lymphoid | | Lumbar, Pigmentation | | __________________________________________________________________________| Lymph Node, Bronchial | + + + M M M + M M + + M M + M + + M M + M M + M| Hemorrhage | 3 1 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Hyperplasia, Plasma Cell | 3 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | | Hemorrhage | 1 3 2 1 1 3 | Pigmentation | | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + M + + + + M + + + + + + + + + + +| Hemorrhage | 2 1 3 1 2 2 3 3 2 3 1 1 2 3 2 2| Infiltration Cellular, Histiocyte | 3 | Pigmentation | 1 2 2 2 2 1 2 2 2 2 2| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 3 2 | Pigmentation | 3 | __________________________________________________________________________| Thymus | + M + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 1 2 4 4 2 4 2 3 2 4 4 3 1 2 1 3 3 | Pigmentation | 2 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Lactation | 2 1 3 2 2 3 2 3 2 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Tail, Hyperkeratosis | | Tail, Parakeratosis | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 2 1 2 2 3 3 | Hemorrhage | | Hydrocephalus | 3 1 | Thrombosis | 3 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | _____________________________________________________________________________________________________________________| Page 4 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 6| 5| 6| 6| 7| 7| 6| 6| 7| 7| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 3| 5| 6| 3| 3| 3| 3| 3| 0| 1| 4| 5| 3| 3| 4| 7| 3| 3| 3| 0| 3| | 3| 4| 3| 3| 4| 2| 8| 4| 5| 3| 5| 4| 2| 6| 1| 8| 5| 4| 6| 1| 5| 5| 5| 2| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| | 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 3 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 1 | Infiltration Cellular, Histiocyte | 1 | Inflammation | 1 1 | Alveolar Epithelium, Hyperplasia | 1 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 2 1 | Inflammation | 2 2 1| Goblet Cell, Hyperplasia | | Nasolacrimal Duct, Inflammation | 3 | Olfactory Epithelium, Cytoplasmic | | Alteration | | Respiratory Epithelium, Hyperplasia | 2 2 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Infarct | 3 | Mineralization | 1 1 | Nephropathy, Chronic | 2 1 2 1 2 1 2 1 3 2 3 2 1 2 2 2 2 2 1 1 1 2| Pigmentation | 1 | Transitional Epithelium, Hyperplasia | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 3 | _____________________________________________________________________________________________________________________| Page 5 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 6| 6| 7| 4| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 0| 3| 3| 2| 2| 3| 3| 3| 3| 3| 3| 3| 4| 3| 4| 6| 3| 6| 2| 3| 3| 5| 5| 5| 5| | 4| 5| 3| 6| 1| 3| 4| 4| 3| 5| 4| 3| 0| 3| 0| 6| 5| 4| 0| 4| 3| 7| 7| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| CONTROL | 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + A + + + + + + + + M + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | Necrosis | | __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + A + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + A + + + + + + + + + + + + + + + + + + + + +| Inflammation | | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 2 1 1 1 1| Basophilic Focus, Multiple | 1 2 2 2 1 1 1 | Clear Cell Focus | 1 1 1 | Congestion | 1 | Developmental Malformation | 2 | Eosinophilic Focus | 2 | Fatty Change | 2 1 3 2 | Hematopoietic Cell Proliferation | 1 | Hemorrhage | | Hepatodiaphragmatic Nodule | X | Inflammation | 2 | Mixed Cell Focus | 2 X | Necrosis | 1 | __________________________________________________________________________| Mesentery | | Fat, Necrosis | | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | X | Acinar Cell, Atrophy | 2 1 1 2 1 1 2 2 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | Ulcer | 2 | Ulcer, Multiple | 3 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 | Ulcer | | Ulcer, Multiple | | __________________________________________________________________________| Tongue | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1| Atrium, Thrombosis | | _____________________________________________________________________________________________________________________| Page 6 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 6| 6| 7| 4| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 0| 3| 3| 2| 2| 3| 3| 3| 3| 3| 3| 3| 4| 3| 4| 6| 3| 6| 2| 3| 3| 5| 5| 5| 5| | 4| 5| 3| 6| 1| 3| 4| 4| 3| 5| 4| 3| 0| 3| 0| 6| 5| 4| 0| 4| 3| 7| 7| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| CONTROL | 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 | Cyst | | Degeneration | 2 | Hemorrhage | 3 | Hyperplasia | 2 2 1 | Hypertrophy | | Necrosis | 3 | Vacuolization Cytoplasmic | 2 3 2 1 1 | __________________________________________________________________________| Adrenal Medulla | M + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Hyperplasia | 2 | __________________________________________________________________________| Islets, Pancreatic | + | __________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + M M + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Hyperplasia | | Pars Distalis, Angiectasis | 2 4 3 3 2 | Pars Distalis, Cyst | 2 1 2 2 1 3 2 | Pars Distalis, Hyperplasia | 1 2 3 1 2 3 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 2 2| Follicle, Dilatation | 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + M + + M + + + + + + + + +| Ectasia | 3 1 1 2 1 2 3 2 3 1 2 3 2 2 2 3| Hyperplasia | | Inflammation | 2 1 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 1 2 2 | Corpus Luteum, Hyperplasia | | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 3 | Hemorrhage | 4 | Bilateral, Dilatation | 3 | Endometrium, Hyperplasia | 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 7 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 6| 6| 7| 4| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 0| 3| 3| 2| 2| 3| 3| 3| 3| 3| 3| 3| 4| 3| 4| 6| 3| 6| 2| 3| 3| 5| 5| 5| 5| | 4| 5| 3| 6| 1| 3| 4| 4| 3| 5| 4| 3| 0| 3| 0| 6| 5| 4| 0| 4| 3| 7| 7| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| CONTROL | 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 3 1 | __________________________________________________________________________| Lymph Node | + | Lumbar, Cyst | 2 | Lumbar, Hyperplasia, Lymphoid | 2 | Lumbar, Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Bronchial | + + M + + M + + + M + + + M + + + + M M + + + + +| Hemorrhage | 1 2 3 2| Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + M + + + + + + + + + + + + + + +| Hemorrhage | 2 1 | Hyperplasia, Plasma Cell | 3 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Edema | 3 | Hemorrhage | 2 2 | Pigmentation | 1 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 2 1 3 4 1 1 2 2 1 2 1 3 1 2| Infiltration Cellular, Histiocyte | | Pigmentation | 2 2 2 2 2 1 2 2 2 2 2 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 1 3 2 | Pigmentation | | __________________________________________________________________________| Thymus | + + + + M + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 2 1 2 1 2 1 1 2 1 3 1 2 2 2 1 4 1 2 2 1 2 2| Pigmentation | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Lactation | 3 3 2 2 3 2 1 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Tail, Hyperkeratosis | 3 | Tail, Parakeratosis | 2 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 2 3 1 2 3 | Hemorrhage | 2 1 | Hydrocephalus | 2 | Thrombosis | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | _____________________________________________________________________________________________________________________| Page 8 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 6| 6| 7| 4| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 0| 3| 3| 2| 2| 3| 3| 3| 3| 3| 3| 3| 4| 3| 4| 6| 3| 6| 2| 3| 3| 5| 5| 5| 5| | 4| 5| 3| 6| 1| 3| 4| 4| 3| 5| 4| 3| 0| 3| 0| 6| 5| 4| 0| 4| 3| 7| 7| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| CONTROL | 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 1 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 2 2 2 | Infiltration Cellular, Histiocyte | | Inflammation | 1 3 | Alveolar Epithelium, Hyperplasia | 1 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | | Inflammation | 2 2 1 2 | Goblet Cell, Hyperplasia | 2 | Nasolacrimal Duct, Inflammation | 1 | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 | Respiratory Epithelium, Hyperplasia | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 3 | Infarct | | Mineralization | 1 1 1 1 1 1| Nephropathy, Chronic | 2 1 1 1 2 2 2 1 2 1 1 2 2 1 2 2 1 3 1 1 2 2 1 1 1| Pigmentation | 3 1 | Transitional Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | | _____________________________________________________________________________________________________________________| Page 9 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | CONTROL | 0| 0| 0| 1| 1| 1| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 56 | Inflammation | | 1 4.0| Necrosis | | 1 4.0| __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 54 | Inflammation | | 1 2.0| __________________________________________________________________________|____________| Liver | + + + + + + | 56 | Basophilic Focus | 1 | 7 1.1| Basophilic Focus, Multiple | | 22 1.7| Clear Cell Focus | | 3 1.0| Congestion | | 1 1.0| Developmental Malformation | | 2 2.0| Eosinophilic Focus | | 1 2.0| Fatty Change | | 10 2.2| Hematopoietic Cell Proliferation | 1 1 | 4 1.0| Hemorrhage | 1 | 1 1.0| Hepatodiaphragmatic Nodule | | 3 | Inflammation | 1 1 | 4 1.3| Mixed Cell Focus | | 2 2.0| Necrosis | | 3 1.7| __________________________________________________________________________|____________| Mesentery | | 1 | Fat, Necrosis | | 1 3.0| __________________________________________________________________________|____________| Pancreas | + + + + + + | 56 | Accessory Spleen | | 1 | Acinar Cell, Atrophy | 1 1 | 19 1.5| __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 56 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 56 | Hyperplasia | | 2 2.0| Ulcer | | 3 2.0| Ulcer, Multiple | | 2 2.5| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 56 | Inflammation | | 1 2.0| Ulcer | | 2 2.5| Ulcer, Multiple | | 1 3.0| __________________________________________________________________________|____________| Tongue | | 1 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 10 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | CONTROL | 0| 0| 0| 1| 1| 1| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 1 1 1 1 1 1 | 38 1.1| Atrium, Thrombosis | | 2 2.5| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 56 | Angiectasis | 2 | 4 1.5| Cyst | | 1 3.0| Degeneration | | 1 2.0| Hemorrhage | | 1 3.0| Hyperplasia | | 5 1.4| Hypertrophy | | 1 1.0| Necrosis | | 1 3.0| Vacuolization Cytoplasmic | | 8 1.6| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 55 | Angiectasis | 2 | 1 2.0| Hyperplasia | | 2 1.5| __________________________________________________________________________|____________| Islets, Pancreatic | | 6 | __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 51 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 56 | Cyst | | 3 2.3| Hyperplasia | | 1 3.0| Pars Distalis, Angiectasis | 3 2 | 11 2.6| Pars Distalis, Cyst | 1 2 | 16 1.9| Pars Distalis, Hyperplasia | 3 2 | 9 2.2| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 56 | C-Cell, Hyperplasia | | 8 1.9| Follicle, Dilatation | | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + | 54 | Ectasia | 2 3 2 2 | 32 2.2| Hyperplasia | | 2 2.0| Inflammation | | 2 1.5| __________________________________________________________________________________________________________________________________ * : 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 11 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | CONTROL | 0| 0| 0| 1| 1| 1| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Ovary | + + + + + + | 56 | Cyst | | 5 2.2| Corpus Luteum, Hyperplasia | | 1 3.0| __________________________________________________________________________|____________| Uterus | + + + + + + | 56 | Dilatation | | 1 3.0| Hemorrhage | | 1 4.0| Bilateral, Dilatation | | 2 2.5| Endometrium, Hyperplasia | | 1 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 56 | Hyperplasia | | 7 2.6| __________________________________________________________________________|____________| Lymph Node | | 1 | Lumbar, Cyst | | 1 2.0| Lumbar, Hyperplasia, Lymphoid | | 1 2.0| Lumbar, Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 36 | Hemorrhage | 2 2 1 1 1 2 | 12 1.8| Pigmentation | | 2 2.0| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 55 | Hemorrhage | | 2 1.5| Hyperplasia, Plasma Cell | | 2 3.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 56 | Edema | | 1 3.0| Hemorrhage | | 8 1.9| Pigmentation | | 1 1.0| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 54 | Hemorrhage | 1 2 2 2 2 1 | 37 1.9| Infiltration Cellular, Histiocyte | | 1 3.0| Pigmentation | | 22 1.9| __________________________________________________________________________|____________| Spleen | + + + + + + | 56 | Hematopoietic Cell Proliferation | | 5 2.2| Pigmentation | | 1 3.0| __________________________________________________________________________|____________| Thymus | + + + + + + | 54 | Atrophy | 2 2 2 1 | 44 2.1| Pigmentation | | 1 2.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 56 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | CONTROL | 0| 0| 0| 1| 1| 1| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM - cont | | | | | | Lactation | | 17 2.2| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | Tail, Hyperkeratosis | | 1 3.0| Tail, Parakeratosis | | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 13 2.2| Hemorrhage | | 2 1.5| Hydrocephalus | | 3 2.0| Thrombosis | | 1 3.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Inflammation | | 3 1.7| __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Hemorrhage | 1 2 1 1 | 10 1.4| Infiltration Cellular, Histiocyte | | 1 1.0| Inflammation | | 4 1.5| Alveolar Epithelium, Hyperplasia | 1 | 4 1.3| __________________________________________________________________________|____________| Nose | + + + + + + | 56 | Foreign Body | | 2 1.5| Inflammation | | 7 1.7| Goblet Cell, Hyperplasia | | 1 2.0| Nasolacrimal Duct, Inflammation | | 2 2.0| Olfactory Epithelium, Cytoplasmic | | | Alteration | 2 | 2 2.0| Respiratory Epithelium, Hyperplasia | | 3 1.7| __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 56 | Cyst | | 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 13 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | CONTROL | 0| 0| 0| 1| 1| 1| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ URINARY SYSTEM - cont | | | | | | Infarct | | 1 3.0| Mineralization | 1 1 1 1 1 1 | 14 1.0| Nephropathy, Chronic | 1 1 1 1 1 | 52 1.6| Pigmentation | | 3 1.7| Transitional Epithelium, Hyperplasia | | 1 2.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 56 | Dilatation | | 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 14 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 3| 6| 7| 4| 7| 6| 7| 7| 7| 1| 6| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 5| 2| 4| 3| 3| 3| 3| 7| 4| 3| 7| 3| 7| 3| 3| 3| 7| 2| 3| 3| 3| | 3| 4| 3| 5| 9| 0| 8| 4| 4| 4| 5| 8| 5| 4| 7| 4| 2| 3| 3| 3| 6| 4| 3| 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 | 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| 37.5 PPM | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| | 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + A + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + A + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + A + + + + + + + A + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + A + + + + + + + + + + + + + A + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + A A A + + + + + + + + + + + + + A + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Basophilic Focus | 1 1 | Basophilic Focus, Multiple | 2 2 2 2 2 2 2 2 2 2 3 1 2 2 2 3 2| Clear Cell Focus | 1 | Eosinophilic Focus | 2 1 1 3 | Fatty Change | 2 1 | Hepatodiaphragmatic Nodule | 2 | Infiltration Cellular, Lymphocyte | | Inflammation | 1 1 | Necrosis | | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | Acinar Cell, Atrophy | 2 1 4 1 1 2 1 2 2 3 1 2| __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 4 | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + A + + + + + + + + +| __________________________________________________________________________| Tongue | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 1 1 2 1 2 1 2 1 1 1| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 1 2 2 2 | Cytoplasmic Alteration | | Degeneration | | Hemorrhage | | Hyperplasia | 2 2 | Hypertrophy | | Vacuolization Cytoplasmic | 2 2 2 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1| __________________________________________________________________________| Islets, Pancreatic | + | _____________________________________________________________________________________________________________________| Page 15 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 3| 6| 7| 4| 7| 6| 7| 7| 7| 1| 6| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 5| 2| 4| 3| 3| 3| 3| 7| 4| 3| 7| 3| 7| 3| 3| 3| 7| 2| 3| 3| 3| | 3| 4| 3| 5| 9| 0| 8| 4| 4| 4| 5| 8| 5| 4| 7| 4| 2| 3| 3| 3| 6| 4| 3| 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 | 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| 37.5 PPM | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| | 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | __________________________________________________________________________| Parathyroid Gland | + + + + M + + + + + + + M + + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + M + + + M +| Pars Distalis, Angiectasis | 2 3 2 3 4 2 | Pars Distalis, Cyst | 2 1 3 2 2 1 3 2 2 | Pars Distalis, Hyperplasia | 2 2 2 2 3 2 2 3 2| Pars Nervosa, Developmental | | Malformation | 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 3| _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | + | Developmental Malformation | X | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + M + + + + + + + + + + + + + + + + +| Abscess | 3 | Ectasia | 2 3 2 2 2 2 3 2 2 2 3 2 2| Hyperplasia | 2 3 | Inflammation | 3 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 2 | Bilateral, Cyst | | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | Dilatation | 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 3 3 1 | Myelofibrosis | 2 | __________________________________________________________________________| Lymph Node | + | Axillary, Hyperplasia, Lymphoid | 3 | Axillary, Hyperplasia, Plasma Cell | 2 | __________________________________________________________________________| Lymph Node, Bronchial | M + M + + M + M + + + + M + + + M + + + M + M +| Hemorrhage | 1 1 2 1 3 1 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Hemorrhage | | Hyperplasia, Lymphoid | 2 | Hyperplasia, Plasma Cell | | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 1 1 1 1 | _____________________________________________________________________________________________________________________| Page 16 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 3| 6| 7| 4| 7| 6| 7| 7| 7| 1| 6| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 5| 2| 4| 3| 3| 3| 3| 7| 4| 3| 7| 3| 7| 3| 3| 3| 7| 2| 3| 3| 3| | 3| 4| 3| 5| 9| 0| 8| 4| 4| 4| 5| 8| 5| 4| 7| 4| 2| 3| 3| 3| 6| 4| 3| 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 | 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| 37.5 PPM | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| | 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + M + + + + + + + + + + + +| Hemorrhage | 2 2 1 2 2 2 3 2 3 2 2 2 2 2 1 1| Pigmentation | 1 2 1 2 1 1 2 2 3 2 2 2 2 1 2| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 2 2 2 2 3 | __________________________________________________________________________| Thymus | + + + + + + + M + + + + + + + + + + M + + + + +| Atrophy | 2 2 2 2 1 2 2 1 1 1 2 2 2| Hemorrhage | 2 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | | Hemorrhage | 2 | Lactation | 2 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | | Ulcer, Multiple | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + +| Femur, Hyperostosis | 3 3 3 3 | Turbinate, Hyperostosis | 3 2 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 2 3 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 3 2 2 | Hemorrhage | 1 3 1 2 1 1 1 1 | Infiltration Cellular, Histiocyte | 1 | Inflammation | 3 1 | Alveolar Epithelium, Hyperplasia | 2 2 1 1 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Foreign Body | | Hemorrhage | | Inflammation | 2 1 | Goblet Cell, Hyperplasia | | Nasolacrimal Duct, Inflammation | 4 2 | Respiratory Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 17 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 3| 6| 7| 4| 7| 6| 7| 7| 7| 1| 6| 7| 7| 7| DAY ON TEST | 3| 3| 3| 3| 5| 2| 4| 3| 3| 3| 3| 7| 4| 3| 7| 3| 7| 3| 3| 3| 7| 2| 3| 3| 3| | 3| 4| 3| 5| 9| 0| 8| 4| 4| 4| 5| 8| 5| 4| 7| 4| 2| 3| 3| 3| 6| 4| 3| 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 | 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| 37.5 PPM | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| | 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | Inflammation | | _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + | Hemorrhage | 2 | Lens, Cataract | 3 | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Hypoplasia | 3 | Mineralization | 1 1 1 1 | Nephropathy, Chronic | 2 1 2 2 1 1 1 2 2 2 1 1 1 2 1 1 2| __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | _____________________________________________________________________________________________________________________| Page 18 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 5| 5| 5| 5| | 6| 3| 3| 4| 4| 5| 3| 5| 5| 4| 3| 3| 4| 9| 5| 4| 5| 4| 4| 3| 5| 7| 7| 7| 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 | 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 37.5 PPM | 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| | 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | A + + + + + + + + + + + A + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Basophilic Focus | 1 1 1| Basophilic Focus, Multiple | 1 2 2 1 2 1 1 3 2 1 1 2 2 1 1 | Clear Cell Focus | | Eosinophilic Focus | 1 1 2 3 | Fatty Change | 2 | Hepatodiaphragmatic Nodule | 2 2 | Infiltration Cellular, Lymphocyte | | Inflammation | 2 | Necrosis | 2 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | Acinar Cell, Atrophy | 1 1 2 2 1 1 2 1 2 4 1 2 1 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 2 2 1 1 1 1 1 1 1 1 1| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 | Cytoplasmic Alteration | 1 | Degeneration | 2 | Hemorrhage | 1 | Hyperplasia | 2 2 | Hypertrophy | 1 | Vacuolization Cytoplasmic | 2 3 2 3 3 2 1 1 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 2 | __________________________________________________________________________| Islets, Pancreatic | | _____________________________________________________________________________________________________________________| Page 19 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 5| 5| 5| 5| | 6| 3| 3| 4| 4| 5| 3| 5| 5| 4| 3| 3| 4| 9| 5| 4| 5| 4| 4| 3| 5| 7| 7| 7| 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 | 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 37.5 PPM | 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| | 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | __________________________________________________________________________| Parathyroid Gland | + + + + M + + + + M + + + + M + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | 2 1 2 2 | Pars Distalis, Cyst | 3 2 3 2 3 2 2 2 1 2| Pars Distalis, Hyperplasia | 3 1 2 2 2 2 2 3 2 3 2| Pars Nervosa, Developmental | | Malformation | | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | | Developmental Malformation | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | | Ectasia | 2 3 2 1 3 3 2 2 2 2 1 2 3 3 | Hyperplasia | 2 3 | Inflammation | 2 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 3 2 2 2 | Bilateral, Cyst | 2 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Dilatation | 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 4 | Myelofibrosis | | __________________________________________________________________________| Lymph Node | | Axillary, Hyperplasia, Lymphoid | | Axillary, Hyperplasia, Plasma Cell | | __________________________________________________________________________| Lymph Node, Bronchial | M + M M M + + + + + + + + + M M + + M + + + + + +| Hemorrhage | 2 1 2 2 2 2 3 2 2 1 2 | Pigmentation | 1 2 2 1 1 1 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | Hemorrhage | 1 | Hyperplasia, Lymphoid | | Hyperplasia, Plasma Cell | 2 2 3 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 1 | _____________________________________________________________________________________________________________________| Page 20 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 5| 5| 5| 5| | 6| 3| 3| 4| 4| 5| 3| 5| 5| 4| 3| 3| 4| 9| 5| 4| 5| 4| 4| 3| 5| 7| 7| 7| 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 | 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 37.5 PPM | 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| | 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 2 3 2 2 2 3 2 3 2 3 1 3 2 1 1 1 1 2| Pigmentation | 2 2 3 1 1 1 2 3 1 1 1 2 1 2 2 1 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 1 1 2 1 1 1 | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 1 1 1 2 1 2 1 2 2 | Hemorrhage | 1 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | 2 | Hemorrhage | | Lactation | 2 3 2 2 3 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | | Ulcer, Multiple | 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Femur, Hyperostosis | 2 4 | Turbinate, Hyperostosis | 2 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 2 2 1 1 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hemorrhage | 2 1 1 1 | Infiltration Cellular, Histiocyte | | Inflammation | 1 1 | Alveolar Epithelium, Hyperplasia | 2 1 1 2 2 1 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Foreign Body | 2 | Hemorrhage | 2 | Inflammation | 2 2 1| Goblet Cell, Hyperplasia | 1 2| Nasolacrimal Duct, Inflammation | | Respiratory Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 21 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 5| 5| 5| 5| | 6| 3| 3| 4| 4| 5| 3| 5| 5| 4| 3| 3| 4| 9| 5| 4| 5| 4| 4| 3| 5| 7| 7| 7| 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 | 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 37.5 PPM | 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| | 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | Inflammation | 2 | _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | | Hemorrhage | | Lens, Cataract | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hypoplasia | | Mineralization | 1 1 1 1 2 1| Nephropathy, Chronic | 2 1 2 1 1 1 2 1 1 2 2 2 1 1 2 1 3 2 1 1 1 1| __________________________________________________________________________| Urinary Bladder | + + + + + + + + M + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | _____________________________________________________________________________________________________________________| Page 22 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 37.5 PPM | 1| 2| 2| 2| 2| 2| | L | | 9| 0| 1| 2| 3| 4| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 53 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 51 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 51 | __________________________________________________________________________|____________| Liver | + M + + + + | 54 | Angiectasis | | 1 2.0| Basophilic Focus | 1 | 6 1.0| Basophilic Focus, Multiple | 1 1 | 34 1.8| Clear Cell Focus | | 1 1.0| Eosinophilic Focus | | 8 1.8| Fatty Change | 2 | 4 1.8| Hepatodiaphragmatic Nodule | | 3 2.0| Infiltration Cellular, Lymphocyte | 1 | 1 1.0| Inflammation | | 3 1.3| Necrosis | | 1 2.0| __________________________________________________________________________|____________| Pancreas | + + + + + + | 55 | Infiltration Cellular, Lymphocyte | 1 | 1 1.0| Acinar Cell, Atrophy | 2 1 1 | 28 1.7| __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 55 | Inflammation | | 1 4.0| __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 55 | Inflammation | | 1 1.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 54 | __________________________________________________________________________|____________| Tongue | | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 55 | Cardiomyopathy | 1 1 1 1 1 1 | 30 1.2| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 55 | Angiectasis | | 7 1.7| Cytoplasmic Alteration | | 1 1.0| Degeneration | 1 | 2 1.5| Hemorrhage | | 1 1.0| Hyperplasia | 1 | 5 1.8| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 23 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 37.5 PPM | 1| 2| 2| 2| 2| 2| | L | | 9| 0| 1| 2| 3| 4| | | __________________________________________________________________________________________________________________________________ ENDOCRINE SYSTEM - cont | | | | | | Hypertrophy | | 1 1.0| Vacuolization Cytoplasmic | | 13 2.1| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 55 | Hyperplasia | | 4 1.3| __________________________________________________________________________|____________| Islets, Pancreatic | | 1 | __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 50 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 53 | Pars Distalis, Angiectasis | 2 3 | 12 2.3| Pars Distalis, Cyst | 3 1 | 21 2.1| Pars Distalis, Hyperplasia | 2 3 3 1 | 24 2.2| Pars Nervosa, Developmental | | | Malformation | | 1 2.0| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 55 | C-Cell, Hyperplasia | | 4 1.8| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Tissue NOS | | 1 | Developmental Malformation | | 1 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + | 54 | Abscess | | 1 3.0| Ectasia | 2 2 2 2 2 3 | 33 2.2| Hyperplasia | | 4 2.5| Inflammation | 1 | 3 2.0| __________________________________________________________________________|____________| Ovary | + + + + + + | 55 | Cyst | 2 2 | 9 2.1| Bilateral, Cyst | | 1 2.0| __________________________________________________________________________|____________| Uterus | + + + + + + | 55 | Cyst | | 1 2.0| Dilatation | | 2 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 55 | Hyperplasia | | 7 2.4| Myelofibrosis | | 1 2.0| __________________________________________________________________________|____________| Lymph Node | | 1 | Axillary, Hyperplasia, Lymphoid | | 1 3.0| Axillary, Hyperplasia, Plasma Cell | | 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 24 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 37.5 PPM | 1| 2| 2| 2| 2| 2| | L | | 9| 0| 1| 2| 3| 4| | | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 40 | Hemorrhage | 1 2 1 2 2 1 | 23 1.7| Pigmentation | | 7 1.4| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 55 | Cyst | | 1 2.0| Hemorrhage | | 1 1.0| Hyperplasia, Lymphoid | | 1 2.0| Hyperplasia, Plasma Cell | | 3 2.3| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 55 | Hemorrhage | 1 | 8 1.1| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 54 | Hemorrhage | 2 2 2 2 2 1 | 41 1.9| Pigmentation | | 31 1.7| __________________________________________________________________________|____________| Spleen | + + + + + + | 55 | Hematopoietic Cell Proliferation | | 11 1.6| __________________________________________________________________________|____________| Thymus | + + + + + + | 53 | Atrophy | 2 1 1 1 | 26 1.5| Hemorrhage | | 2 1.5| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 55 | Abscess | | 1 2.0| Hemorrhage | | 1 2.0| Lactation | | 7 2.3| __________________________________________________________________________|____________| Skin | + + + + + + | 55 | Ulcer | 2 | 1 2.0| Ulcer, Multiple | | 1 4.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 55 | Femur, Hyperostosis | | 6 3.0| Turbinate, Hyperostosis | | 3 2.3| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 55 | Compression | | 8 1.9| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 55 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 37.5 PPM | 1| 2| 2| 2| 2| 2| | L | | 9| 0| 1| 2| 3| 4| | | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Lung | + + + + + + | 55 | Congestion | | 4 2.5| Hemorrhage | 1 2 1 | 15 1.3| Infiltration Cellular, Histiocyte | | 1 1.0| Inflammation | | 4 1.5| Alveolar Epithelium, Hyperplasia | | 12 1.6| __________________________________________________________________________|____________| Nose | + + + + + + | 55 | Angiectasis | | 1 2.0| Foreign Body | | 1 2.0| Hemorrhage | | 1 2.0| Inflammation | | 5 1.6| Goblet Cell, Hyperplasia | 1 1 | 4 1.3| Nasolacrimal Duct, Inflammation | | 2 3.0| Respiratory Epithelium, Hyperplasia | | 2 2.0| __________________________________________________________________________|____________| Trachea | + + + + + + | 55 | Inflammation | | 1 2.0| _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | | 1 | Hemorrhage | | 1 2.0| Lens, Cataract | | 1 3.0| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 55 | Congestion | | 1 2.0| Hypoplasia | | 1 3.0| Mineralization | 1 1 1 1 2 1 | 16 1.1| Nephropathy, Chronic | 1 1 1 1 1 | 44 1.4| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 54 | Infiltration Cellular, Lymphocyte | 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 26 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 7| 3| 7| 6| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 3| 7| 7| 7| 7| DAY ON TEST | 3| 5| 3| 1| 2| 0| 3| 3| 3| 7| 3| 3| 3| 3| 3| 3| 4| 3| 3| 0| 7| 3| 3| 3| 0| | 5| 3| 3| 6| 6| 4| 4| 4| 5| 4| 4| 0| 4| 5| 3| 4| 7| 5| 3| 4| 7| 3| 3| 4| 8| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 75 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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 | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + A + + + + + + A A + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + A A + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + A + + + + + + + A + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + A A + + + + + + A A + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 | Basophilic Focus | 1 2 1 1 1 1 | Basophilic Focus, Multiple | 2 3 2 2 1 1 2 1 2 1 1 2 1 1| Clear Cell Focus | | Clear Cell Focus, Multiple | | Congestion | 2 2 2 | Eosinophilic Focus | 3 | Eosinophilic Focus, Multiple | 3 2 3 | Fatty Change | 2 1 1 2 3 | Hepatodiaphragmatic Nodule | X 2 2 | Infiltration Cellular, Lymphocyte | 1 | Inflammation | 2 2 1 1 | Mixed Cell Focus | 1 2 | Necrosis | 2 | Pigmentation | | Vacuolization Cytoplasmic | 3 3 3 3 | Centrilobular, Cytoplasmic Alteration| 2 | __________________________________________________________________________| Mesentery | | Fat, Necrosis | | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | | Acinar Cell, Atrophy | 1 2 1 1 3 1 1 2 1 3 2 | __________________________________________________________________________| Pharynx | + + | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | Inflammation | 3 | Ulcer | 2 | Ulcer, Multiple | 4 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 1 1 1 1 1 2 2 1 1 1 1 2| _____________________________________________________________________________________________________________________| Page 27 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 7| 3| 7| 6| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 3| 7| 7| 7| 7| DAY ON TEST | 3| 5| 3| 1| 2| 0| 3| 3| 3| 7| 3| 3| 3| 3| 3| 3| 4| 3| 3| 0| 7| 3| 3| 3| 0| | 5| 3| 3| 6| 6| 4| 4| 4| 5| 4| 4| 0| 4| 5| 3| 4| 7| 5| 3| 4| 7| 3| 3| 4| 8| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 75 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 3 2 | Congestion | 2 | Degeneration | 2 | Hemorrhage | | Hypertrophy | | Vacuolization Cytoplasmic | 2 3 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | __________________________________________________________________________| Parathyroid Gland | + M + + M + + M + + + + + + + M + M + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | Pars Distalis, Angiectasis | 3 4 3 2 | Pars Distalis, Cyst | 1 2 3 1 2 2 | Pars Distalis, Hyperplasia | 1 2 2 3 3 2| __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 1 | Follicle, Dilatation | 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + M + + M + + + + + + + + + + + + + + + + + + + +| Abscess | | Ectasia | 2 3 2 2 2 3 3 2 2 2 2 3 2 1 2 3| Hyperplasia | 2 | Inflammation | 3 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | Hemorrhage | 1 | Bilateral, Cyst | | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 1 2 | Prolapse | 3 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 | Hyperplasia | 3 1 3 | Myelofibrosis | 1 | __________________________________________________________________________| Lymph Node, Bronchial | + + + + M M + + + M + + + + + + M + M M M + + + +| _____________________________________________________________________________________________________________________| Page 28 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 7| 3| 7| 6| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 3| 7| 7| 7| 7| DAY ON TEST | 3| 5| 3| 1| 2| 0| 3| 3| 3| 7| 3| 3| 3| 3| 3| 3| 4| 3| 3| 0| 7| 3| 3| 3| 0| | 5| 3| 3| 6| 6| 4| 4| 4| 5| 4| 4| 0| 4| 5| 3| 4| 7| 5| 3| 4| 7| 3| 3| 4| 8| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 75 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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 | | | | Hemorrhage | 3 1 2 3 1 2 | Pigmentation | 1 1 1 2 2 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + M + + + + + + + +| Hemorrhage | | Hyperplasia, Lymphoid | | Pigmentation | 1 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 3 2 2 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + M + + M + + + + + M + + + + M +| Hemorrhage | 3 2 1 2 1 1 2 2 2 2 1 3 2 1 | Pigmentation | 2 2 2 2 1 2 1 1 2 2 2 1 1 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + A + + + + +| Hematopoietic Cell Proliferation | 2 3 2 1 | Pigmentation | 2 3 | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + M +| Atrophy | 1 1 1 1 2 3 1 2 1 1 2 3 2 2 2 4 3| Congestion | 3 | Hemorrhage | 1 3 1 | Necrosis | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Lactation | 3 2 2 2 2 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Femur, Hyperostosis | 3 2 | Turbinate, Hyperostosis | 3 3 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 2 3 2 2 2 2 2 | Hemorrhage | 3 2 1 | Hydrocephalus | 3 | Necrosis | 2 3 3 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Inflammation | 2 1 2 | Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 2 2 2 2| _____________________________________________________________________________________________________________________| Page 29 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 7| 3| 7| 6| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 5| 3| 7| 7| 7| 7| DAY ON TEST | 3| 5| 3| 1| 2| 0| 3| 3| 3| 7| 3| 3| 3| 3| 3| 3| 4| 3| 3| 0| 7| 3| 3| 3| 0| | 5| 3| 3| 6| 6| 4| 4| 4| 5| 4| 4| 0| 4| 5| 3| 4| 7| 5| 3| 4| 7| 3| 3| 4| 8| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 75 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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 | | | | Hemorrhage | 2 1 1 2| Infiltration Cellular, Histiocyte | 1 | Inflammation | 2 | Alveolar Epithelium, Hyperplasia | 1 1 2 2 1 1 1 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Inflammation | 2 | Goblet Cell, Hyperplasia | | Olfactory Epithelium, Cytoplasmic | | Alteration | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + | Bilateral, Lens, Cataract | 3 | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Congestion | 2 | Mineralization | 1 1 1 1 1 | Necrosis | 1 | Nephropathy, Chronic | 2 1 1 2 2 2 3 2 1 1 1 1 1 2 1 | Pigmentation | 1 1 | __________________________________________________________________________| Urinary Bladder | + + + M + + + + + + + + + + + + + + + + + + + + +| Dilatation | 3 | _____________________________________________________________________________________________________________________| Page 30 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 1| 5| 0| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 5| 5| 5| 5| | 3| 4| 6| 3| 4| 5| 5| 5| 0| 0| 5| 5| 4| 4| 4| 3| 6| 3| 3| 4| 4| 7| 7| 7| 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| 75 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| | 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 | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + A + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + A + + + + + + + A + + + + + A + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + A + + + + + A + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Basophilic Focus | 2 1 1 | Basophilic Focus, Multiple | 2 1 1 2 3 1 1 1 2 2 2 1 2 2 1 1 | Clear Cell Focus | 1 1 | Clear Cell Focus, Multiple | 1 | Congestion | | Eosinophilic Focus | 2 2 1 | Eosinophilic Focus, Multiple | | Fatty Change | 1 1 2 1 | Hepatodiaphragmatic Nodule | 2 X | Infiltration Cellular, Lymphocyte | | Inflammation | 1 1 | Mixed Cell Focus | | Necrosis | | Pigmentation | 1| Vacuolization Cytoplasmic | | Centrilobular, Cytoplasmic Alteration| | __________________________________________________________________________| Mesentery | + + | Fat, Necrosis | 3 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Accessory Spleen | X | Acinar Cell, Atrophy | 1 1 3 1 1 1 1 1 2 1 1 1 | __________________________________________________________________________| Pharynx | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + M + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 | Inflammation | | Ulcer | 3 | Ulcer, Multiple | | __________________________________________________________________________| Stomach, Glandular | + + A + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 2 2 1 1 1 1 1 2 1 2 1 1 1 1| _____________________________________________________________________________________________________________________| Page 31 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 1| 5| 0| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 5| 5| 5| 5| | 3| 4| 6| 3| 4| 5| 5| 5| 0| 0| 5| 5| 4| 4| 4| 3| 6| 3| 3| 4| 4| 7| 7| 7| 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| 75 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| | 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 | | | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 2 3 2 2 2 | Congestion | | Degeneration | | Hemorrhage | 1 | Hypertrophy | 2 | Vacuolization Cytoplasmic | 1 1 1 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 | __________________________________________________________________________| Parathyroid Gland | + + + + + M M + M + + + + M + + + + + + M + + + +| __________________________________________________________________________| Pituitary Gland | + + + + M + + + + + + + + + + + + + + + + + + + +| Cyst | | Pars Distalis, Angiectasis | 3 | Pars Distalis, Cyst | 2 2 3 2 2 | Pars Distalis, Hyperplasia | 2 2 2 2 3 2 2 1| __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 | Follicle, Dilatation | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | 3 | Ectasia | 3 2 3 2 2 1 2 2 1 2 2 2 2 1 2 2 2| Hyperplasia | | Inflammation | 3 2 1 1| __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | Hemorrhage | | Bilateral, Cyst | 2 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 3 2 | Prolapse | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | Hyperplasia | 3 3 2 | Myelofibrosis | | __________________________________________________________________________| Lymph Node, Bronchial | + + M + + + + + + M + + + + + + + M + + + + + + +| _____________________________________________________________________________________________________________________| Page 32 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 1| 5| 0| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 5| 5| 5| 5| | 3| 4| 6| 3| 4| 5| 5| 5| 0| 0| 5| 5| 4| 4| 4| 3| 6| 3| 3| 4| 4| 7| 7| 7| 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| 75 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| | 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 | | | | Hemorrhage | 1 2 1 1 2 4 1 1 1 2| Pigmentation | 1 1 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + M + + + + M + + + + + + + + + + + + + +| Hemorrhage | 2 2 | Hyperplasia, Lymphoid | 2 | Pigmentation | 1 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 1 2 2 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + M + + + + + + + + + + + + + + + +| Hemorrhage | 2 1 3 1 1 2 2 1 2 2 2 2 2 2 1 1 3 1 2 1 2| Pigmentation | 2 1 2 1 2 2 2 1 2 2 2 2 2 2 2 2 1 3 | __________________________________________________________________________| Spleen | + + A + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 1 1 2| Pigmentation | 2 | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 1 1 3 1 3 3 2 2 1 1 3 2 1 1| Congestion | | Hemorrhage | 1 | Necrosis | 4 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Lactation | 2 2 1 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Femur, Hyperostosis | | Turbinate, Hyperostosis | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 2 3 2 2 1 2 | Hemorrhage | 1 3 | Hydrocephalus | | Necrosis | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 | Inflammation | 2 | Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | _____________________________________________________________________________________________________________________| Page 33 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 6| 7| 7| 7| 7| 7| 6| 6| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 3| 3| 3| 3| 3| 3| 3| 1| 5| 0| 3| 3| 3| 3| 3| 8| 3| 3| 3| 3| 5| 5| 5| 5| | 3| 4| 6| 3| 4| 5| 5| 5| 0| 0| 5| 5| 4| 4| 4| 3| 6| 3| 3| 4| 4| 7| 7| 7| 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| 75 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| | 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 | | | | Hemorrhage | 1 1 2 1 1 | Infiltration Cellular, Histiocyte | | Inflammation | 2 1 | Alveolar Epithelium, Hyperplasia | 2 2 2 2 | __________________________________________________________________________| Nose | + + A + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 | Inflammation | 1 2 2 | Goblet Cell, Hyperplasia | 1 | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | | Bilateral, Lens, Cataract | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Congestion | | Mineralization | 1 1 1 1 | Necrosis | | Nephropathy, Chronic | 1 2 1 2 2 1 1 2 2 2 1 2 1 1 1 1 1 1 2 1 1 1| Pigmentation | 1 1 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | | _____________________________________________________________________________________________________________________| Page 34 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 75 PPM | 3| 3| 3| 3| 3| 3| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 53 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 53 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 51 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 50 | __________________________________________________________________________|____________| Liver | + + + + + + | 56 | Angiectasis | | 2 2.0| Basophilic Focus | 1 1 1 1 1 1 | 15 1.1| Basophilic Focus, Multiple | | 30 1.6| Clear Cell Focus | | 2 1.0| Clear Cell Focus, Multiple | | 1 1.0| Congestion | | 3 2.0| Eosinophilic Focus | 2 | 5 2.0| Eosinophilic Focus, Multiple | | 3 2.7| Fatty Change | | 9 1.6| Hepatodiaphragmatic Nodule | | 5 2.0| Infiltration Cellular, Lymphocyte | | 1 1.0| Inflammation | | 6 1.3| Mixed Cell Focus | | 2 1.5| Necrosis | | 1 2.0| Pigmentation | | 1 1.0| Vacuolization Cytoplasmic | | 4 3.0| Centrilobular, Cytoplasmic Alteration| | 1 2.0| __________________________________________________________________________|____________| Mesentery | + + | 4 | Fat, Necrosis | 3 3 | 4 3.0| __________________________________________________________________________|____________| Pancreas | + + + + + + | 56 | Accessory Spleen | | 1 | Acinar Cell, Atrophy | 2 2 1 | 26 1.5| __________________________________________________________________________|____________| Pharynx | | 2 | __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 55 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 56 | Hyperplasia | 2 | 3 2.3| Inflammation | | 1 3.0| Ulcer | | 2 2.5| Ulcer, Multiple | | 1 4.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 55 | Inflammation | | 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 35 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 75 PPM | 3| 3| 3| 3| 3| 3| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Tongue | | 2 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 1 1 1 1 1 | 34 1.2| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 56 | Angiectasis | | 10 2.1| Congestion | | 1 2.0| Degeneration | | 1 2.0| Hemorrhage | | 1 1.0| Hypertrophy | | 1 2.0| Vacuolization Cytoplasmic | | 6 1.7| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 55 | Hyperplasia | | 3 1.3| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 46 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 55 | Cyst | | 1 2.0| Pars Distalis, Angiectasis | | 5 3.0| Pars Distalis, Cyst | 3 1 | 13 2.0| Pars Distalis, Hyperplasia | 1 | 15 2.0| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 56 | C-Cell, Hyperplasia | 2 | 5 1.4| Follicle, Dilatation | | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + | 54 | Abscess | | 1 3.0| Ectasia | 3 3 1 2 3 | 38 2.1| Hyperplasia | | 1 2.0| Inflammation | | 5 2.0| __________________________________________________________________________|____________| Ovary | + + + + + + | 56 | Cyst | | 2 2.0| Hemorrhage | | 1 1.0| Bilateral, Cyst | | 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 75 PPM | 3| 3| 3| 3| 3| 3| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Uterus | + + + + + + | 56 | Dilatation | 2 | 5 2.0| Prolapse | | 1 3.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 56 | Atrophy | | 2 2.5| Hyperplasia | | 6 2.5| Myelofibrosis | | 1 1.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 46 | Hemorrhage | 1 1 2 2 1 1 | 22 1.6| Pigmentation | | 9 1.4| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 53 | Hemorrhage | | 2 2.0| Hyperplasia, Lymphoid | | 1 2.0| Pigmentation | | 2 1.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 56 | Hemorrhage | | 8 2.1| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 51 | Hemorrhage | 3 2 2 2 1 1 | 41 1.8| Pigmentation | | 31 1.7| __________________________________________________________________________|____________| Spleen | + + + + + + | 54 | Hematopoietic Cell Proliferation | | 7 1.7| Pigmentation | | 3 2.3| __________________________________________________________________________|____________| Thymus | + + + + + + | 55 | Atrophy | 1 2 | 34 1.8| Congestion | | 1 3.0| Hemorrhage | | 4 1.5| Necrosis | | 1 4.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 56 | Lactation | | 9 2.0| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | Femur, Hyperostosis | | 2 2.5| Turbinate, Hyperostosis | | 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 37 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 75 PPM | 3| 3| 3| 3| 3| 3| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ MUSCULOSKELETAL SYSTEM - cont | | | | | | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 15 2.1| Hemorrhage | | 5 2.0| Hydrocephalus | | 1 3.0| Necrosis | | 3 2.7| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Hemorrhage | | 1 2.0| Inflammation | | 4 1.8| Epithelium, Hyperplasia | | 2 2.0| __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Congestion | | 6 2.0| Hemorrhage | 3 | 10 1.5| Infiltration Cellular, Histiocyte | | 1 1.0| Inflammation | | 3 1.7| Alveolar Epithelium, Hyperplasia | 1 | 12 1.5| __________________________________________________________________________|____________| Nose | + + + + + + | 55 | Angiectasis | | 3 2.0| Inflammation | | 4 1.8| Goblet Cell, Hyperplasia | 1 | 2 1.0| Olfactory Epithelium, Cytoplasmic | | | Alteration | 2 2 | 3 2.0| __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | | 1 | Bilateral, Lens, Cataract | | 1 3.0| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 56 | Angiectasis | | 1 2.0| Congestion | | 1 2.0| Mineralization | 1 1 1 1 2 1 | 15 1.1| Necrosis | | 1 1.0| Nephropathy, Chronic | 1 1 1 1 1 1 | 43 1.4| Pigmentation | | 4 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 38 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 75 PPM | 3| 3| 3| 3| 3| 3| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ URINARY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 55 | Dilatation | | 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 3| 7| 7| 7| 7| 7| 2| 6| 7| 7| 7| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 9| 3| 3| 3| 3| 3| 3| 7| 3| 3| 3| | 1| 4| 5| 3| 4| 5| 3| 3| 3| 4| 8| 4| 5| 5| 4| 3| 3| 4| 5| 4| 4| 4| 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| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + A + + + +| Abscess | | __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + A + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + A + + + + + + + + + A + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + A + + + + + + + + + A + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + A + + + + + + + + + A + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 2 1 1 | Basophilic Focus, Multiple | 1 1 2 3 1 2 3 2 2 1 2 3 2 2 2 2 2 2| Clear Cell Focus | 1 | Clear Cell Focus, Multiple | 1 | Congestion | 1 2 | Developmental Malformation | 2 | Eosinophilic Focus | 2 2 | Eosinophilic Focus, Multiple | | Fatty Change | 2 1| Hemorrhage | | Hepatodiaphragmatic Nodule | 2 2 X 2 | Infiltration Cellular, Lymphocyte | | Inflammation | 1 2 | Necrosis | 2 | Pigmentation | 2 | __________________________________________________________________________| Mesentery | +| Fat, Necrosis | 3| __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectopic Liver | | Acinar Cell, Atrophy | 1 3 1 2 1 2 2 2 2 1 1 | __________________________________________________________________________| Pharynx | + | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | Inflammation | | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | | __________________________________________________________________________| Tongue | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 2 2 2 1 2 2 1 2 2 2 2 2 1 2 1 2 2| Atrium, Thrombosis | 3 | Endocardium, Proliferation | 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | _____________________________________________________________________________________________________________________| Page 40 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 3| 7| 7| 7| 7| 7| 2| 6| 7| 7| 7| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 9| 3| 3| 3| 3| 3| 3| 7| 3| 3| 3| | 1| 4| 5| 3| 4| 5| 3| 3| 3| 4| 8| 4| 5| 5| 4| 3| 3| 4| 5| 4| 4| 4| 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| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 2 2 3 | Congestion | 3 | Degeneration | 3 | Hemorrhage | 3 1 2 | Hyperplasia | 2 1 | Hypertrophy | | Infiltration Cellular, Lymphocyte | | Vacuolization Cytoplasmic | 2 3 2 2 1 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 1 | __________________________________________________________________________| Islets, Pancreatic | + | __________________________________________________________________________| Parathyroid Gland | M + + + + + + + + + + + + + + + + + + M + M M + M| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Congestion | 2 | Pars Distalis, Angiectasis | 2 2 4 3 | Pars Distalis, Cyst | 2 2 | Pars Distalis, Hyperplasia | 3 2 2 2 2 2 3 1 2 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 2 2 3 3 3 2 3 2 3 2 2 2 3 2 3 3 | Hyperplasia | 3 2 2 3 | Inflammation | 1 3 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Cyst | 4 | Dilatation | 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 | Myelofibrosis | | __________________________________________________________________________| Lymph Node | + + | Axillary, Hyperplasia, Lymphoid | 2 | _____________________________________________________________________________________________________________________| Page 41 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 3| 7| 7| 7| 7| 7| 2| 6| 7| 7| 7| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 9| 3| 3| 3| 3| 3| 3| 7| 3| 3| 3| | 1| 4| 5| 3| 4| 5| 3| 3| 3| 4| 8| 4| 5| 5| 4| 3| 3| 4| 5| 4| 4| 4| 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| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | Lumbar, Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Bronchial | M + + + M + M + + + + M M M + M + + + + + M M M M| Hemorrhage | 1 1 2 2 2 2 2 2 | Pigmentation | 1 1 2 | __________________________________________________________________________| Lymph Node, Mandibular | + M + + + + + + + + + + + M + + + + + M + + + + +| Hemorrhage | | Hyperplasia, Plasma Cell | 2 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 3 2 | Pigmentation | | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + M + + + + M + + + + + + + + + +| Hemorrhage | 1 2 1 1 2 1 3 2 1 1 3 2 1 3 2 | Pigmentation | 1 1 1 1 1 2 2 1 2 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Developmental Malformation | 2 | Hematopoietic Cell Proliferation | 1 2 2 2 | Pigmentation | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + M + + +| Atrophy | 1 3 2 2 1 1 2 2 2 2 2 | Congestion | | Cyst | 3 | Hemorrhage | 2 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Galactocele | 3| Hyperplasia | | Inflammation | 3 | Lactation | 2 1 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Femur, Hyperostosis | | Turbinate, Hyperostosis | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 2 2 2 2 2 2| Cyst | 2 | Hemorrhage | 2 2| Hydrocephalus | 2 | _____________________________________________________________________________________________________________________| Page 42 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 3| 7| 7| 7| 7| 7| 2| 6| 7| 7| 7| DAY ON TEST | 8| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 9| 3| 3| 3| 3| 3| 3| 7| 3| 3| 3| | 1| 4| 5| 3| 4| 5| 3| 3| 3| 4| 8| 4| 5| 5| 4| 3| 3| 4| 5| 4| 4| 4| 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| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 2 | Infiltration Cellular, Lymphocyte | 3 2 | Inflammation | 2 2 | Metaplasia, Squamous | | Epithelium, Hyperplasia | | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 3 | Hemorrhage | 1 1 | Infiltration Cellular, Histiocyte | 1 | Inflammation | 2 2 | Alveolar Epithelium, Hyperplasia | 1 2 2 1 2 2 2 2 2 3 1 2 3 3 2 3 1| __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Foreign Body | | Hemorrhage | | Inflammation | 2 2 3 | Goblet Cell, Hyperplasia | 1 | Nasolacrimal Duct, Inflammation | | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 2| Respiratory Epithelium, Hyperplasia | 4 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Ear | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Mineralization | 1 1 1 1 1 | Nephropathy, Chronic | 1 1 1 2 1 1 1 1 3 1 2 1 1 2 1 1 1 2| Pigmentation | 1 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + A + + + + + + + + + + + + M +| Arteriole, Inflammation | | _____________________________________________________________________________________________________________________| Page 43 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 6| 7| 7| 7| 6| 4| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 2| 8| 9| 3| 0| 3| 3| 5| 5| 5| 5| | 3| 0| 4| 4| 3| 3| 5| 5| 3| 7| 0| 4| 3| 3| 2| 3| 6| 4| 5| 3| 3| 7| 7| 7| 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 | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + A + + + + + + + + + + + + + +| Abscess | 4 | __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + A + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + A + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + A + + + + + + + A + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + A + A + + + A + + + A + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + A + + + A + + + A + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | | Basophilic Focus, Multiple | 2 2 2 2 1 1 2 2 2 2 2 2 2 1 1 1 1 2 1 1| Clear Cell Focus | 1 | Clear Cell Focus, Multiple | | Congestion | 1 2 | Developmental Malformation | 1 | Eosinophilic Focus | | Eosinophilic Focus, Multiple | 2 | Fatty Change | 3 2 | Hemorrhage | 2 | Hepatodiaphragmatic Nodule | 2 | Infiltration Cellular, Lymphocyte | | Inflammation | | Necrosis | 1 3 | Pigmentation | | __________________________________________________________________________| Mesentery | + | Fat, Necrosis | 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectopic Liver | 1 | Acinar Cell, Atrophy | 1 1 2 1 2 2 2 1 2 2 2 1 | __________________________________________________________________________| Pharynx | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | Inflammation | 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Ulcer | 2 | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 2 1 1 1 1 2 1 1 2 2 1 1 1 1 1 1| Atrium, Thrombosis | 2 | Endocardium, Proliferation | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | _____________________________________________________________________________________________________________________| Page 44 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 6| 7| 7| 7| 6| 4| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 2| 8| 9| 3| 0| 3| 3| 5| 5| 5| 5| | 3| 0| 4| 4| 3| 3| 5| 5| 3| 7| 0| 4| 3| 3| 2| 3| 6| 4| 5| 3| 3| 7| 7| 7| 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 | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 2 2 3 | Congestion | | Degeneration | | Hemorrhage | 2 | Hyperplasia | 1 | Hypertrophy | 1 | Infiltration Cellular, Lymphocyte | 1 | Vacuolization Cytoplasmic | 2 2 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 | __________________________________________________________________________| Islets, Pancreatic | | __________________________________________________________________________| Parathyroid Gland | M + + + + + + + + + + + + + + + + M + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 4 | Congestion | | Pars Distalis, Angiectasis | 3 4 3 | Pars Distalis, Cyst | 2 2 2 2 2 2 2 | Pars Distalis, Hyperplasia | 2 1 2 2 2 2 3 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 1 1| _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 3 3 1 3 2 3 2 2 2 2 3 2 2 3 2 2 | Hyperplasia | 2 2 | Inflammation | | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Cyst | 2 | Dilatation | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 3 | Myelofibrosis | 3 1 | __________________________________________________________________________| Lymph Node | + | Axillary, Hyperplasia, Lymphoid | | _____________________________________________________________________________________________________________________| Page 45 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 6| 7| 7| 7| 6| 4| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 2| 8| 9| 3| 0| 3| 3| 5| 5| 5| 5| | 3| 0| 4| 4| 3| 3| 5| 5| 3| 7| 0| 4| 3| 3| 2| 3| 6| 4| 5| 3| 3| 7| 7| 7| 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 | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | Lumbar, Pigmentation | | __________________________________________________________________________| Lymph Node, Bronchial | M + + + + + M + + M + + + M + + + + M M M + + + +| Hemorrhage | 1 2 1 2 1 2 | Pigmentation | 1 1 2 1 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 | Hyperplasia, Plasma Cell | | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + A + + + + + + + + + + + + + +| Hemorrhage | 2 2 2 1 | Pigmentation | 1 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + M + + + + + + + + + + + + +| Hemorrhage | 1 2 2 3 2 2 2 2 2 2 1 2 1 2 | Pigmentation | 2 2 2 2 1 2 1 1 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Developmental Malformation | | Hematopoietic Cell Proliferation | 2 2 1 | Pigmentation | 2 2 2 | __________________________________________________________________________| Thymus | + + + + + M + + + + + + + + + + + + + + + + + + +| Atrophy | 1 1 2 4 2 2 2 3 2 2 | Congestion | 3 | Cyst | | Hemorrhage | 1 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Galactocele | | Hyperplasia | 2 | Inflammation | 2 | Lactation | 2 2 2 2 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | 3 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Femur, Hyperostosis | 4 3 2 2 | Turbinate, Hyperostosis | 3 2 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 2 3 | Cyst | | Hemorrhage | | Hydrocephalus | | _____________________________________________________________________________________________________________________| Page 46 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 7| 7| 7| 7| 5| 6| 6| 7| 7| 7| 6| 4| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 0| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 2| 8| 9| 3| 0| 3| 3| 5| 5| 5| 5| | 3| 0| 4| 4| 3| 3| 5| 5| 3| 7| 0| 4| 3| 3| 2| 3| 6| 4| 5| 3| 3| 7| 7| 7| 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 | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 150 PPM | 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | | Infiltration Cellular, Lymphocyte | 2 | Inflammation | 3 1 2 1 | Metaplasia, Squamous | 2 | Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hemorrhage | 1 1 | Infiltration Cellular, Histiocyte | 1 | Inflammation | 2 | Alveolar Epithelium, Hyperplasia | 2 2 1 2 1 1 2 2 2 2 2 2 2 2 2 2| __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Foreign Body | 2 | Hemorrhage | 2 | Inflammation | 1 1 2 | Goblet Cell, Hyperplasia | | Nasolacrimal Duct, Inflammation | 1 2 | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 2 2 1 1| Respiratory Epithelium, Hyperplasia | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Ear | + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Mineralization | 1 1 2 1 1 1 1| Nephropathy, Chronic | 2 1 1 1 1 1 1 1 1 2 1 2 1 1 2 2 1 1 1 1 1| Pigmentation | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + A + + + + + + + + + + M + + +| Arteriole, Inflammation | 2 | _____________________________________________________________________________________________________________________| Page 47 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| | A | 150 PPM | 4| 4| 4| 4| 4| 4| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 54 | Abscess | | 1 4.0| __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 53 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 50 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 51 | __________________________________________________________________________|____________| Liver | + + + + + + | 56 | Basophilic Focus | 1 1 1 | 7 1.1| Basophilic Focus, Multiple | 1 2 | 40 1.8| Clear Cell Focus | | 2 1.0| Clear Cell Focus, Multiple | | 1 1.0| Congestion | | 4 1.5| Developmental Malformation | | 2 1.5| Eosinophilic Focus | | 2 2.0| Eosinophilic Focus, Multiple | | 1 2.0| Fatty Change | | 4 2.0| Hemorrhage | | 1 2.0| Hepatodiaphragmatic Nodule | X | 6 2.0| Infiltration Cellular, Lymphocyte | 2 | 1 2.0| Inflammation | | 2 1.5| Necrosis | | 3 2.0| Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Mesentery | | 2 | Fat, Necrosis | | 2 3.0| __________________________________________________________________________|____________| Pancreas | + + + + + + | 56 | Ectopic Liver | 1 | 2 1.0| Acinar Cell, Atrophy | 2 1 | 25 1.6| __________________________________________________________________________|____________| Pharynx | | 1 | __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 56 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 56 | Hyperplasia | | 1 2.0| Inflammation | | 1 2.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 56 | Ulcer | | 1 2.0| __________________________________________________________________________|____________| Tongue | | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR 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 48 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| | A | 150 PPM | 4| 4| 4| 4| 4| 4| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 1 1 1 1 1 | 41 1.4| Atrium, Thrombosis | | 2 2.5| Endocardium, Proliferation | | 1 3.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 56 | Angiectasis | | 10 2.2| Congestion | | 1 3.0| Degeneration | | 1 3.0| Hemorrhage | | 4 2.0| Hyperplasia | | 3 1.3| Hypertrophy | | 1 1.0| Infiltration Cellular, Lymphocyte | | 1 1.0| Vacuolization Cytoplasmic | | 10 2.0| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 56 | Hyperplasia | | 5 1.8| __________________________________________________________________________|____________| Islets, Pancreatic | | 1 | __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 49 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 56 | Angiectasis | | 1 4.0| Congestion | | 1 2.0| Pars Distalis, Angiectasis | | 7 3.0| Pars Distalis, Cyst | | 9 2.0| Pars Distalis, Hyperplasia | 2 1 1 | 21 2.0| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 56 | C-Cell, Hyperplasia | | 6 1.5| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + | 56 | Ectasia | 2 3 3 2 2 | 37 2.4| Hyperplasia | | 6 2.3| Inflammation | | 2 2.0| __________________________________________________________________________|____________| Ovary | + + + + + + | 56 | Cyst | | 2 2.0| __________________________________________________________________________|____________| Uterus | + + + + + + | 56 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| | A | 150 PPM | 4| 4| 4| 4| 4| 4| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | Angiectasis | | 1 2.0| Cyst | | 2 3.0| Dilatation | 1 | 2 1.5| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 56 | Hyperplasia | 1 | 6 2.0| Myelofibrosis | | 2 2.0| __________________________________________________________________________|____________| Lymph Node | | 3 | Axillary, Hyperplasia, Lymphoid | | 1 2.0| Lumbar, Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 38 | Hemorrhage | 2 2 3 3 1 2 | 20 1.8| Pigmentation | | 7 1.3| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 53 | Hemorrhage | | 1 1.0| Hyperplasia, Plasma Cell | | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 55 | Hemorrhage | 1 | 8 1.9| Pigmentation | | 1 1.0| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 53 | Hemorrhage | 2 2 2 2 1 1 | 35 1.8| Pigmentation | | 17 1.5| __________________________________________________________________________|____________| Spleen | + + + + + + | 56 | Congestion | | 1 2.0| Developmental Malformation | | 1 2.0| Hematopoietic Cell Proliferation | 1 1 1 | 10 1.5| Pigmentation | | 3 2.0| __________________________________________________________________________|____________| Thymus | + + + + + + | 54 | Atrophy | 2 1 1 | 24 1.9| Congestion | | 1 3.0| Cyst | | 1 3.0| Hemorrhage | 1 1 1 | 7 1.7| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 56 | Galactocele | | 1 3.0| Hyperplasia | | 1 2.0| Inflammation | | 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 50 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| | A | 150 PPM | 4| 4| 4| 4| 4| 4| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM - cont | | | | | | Lactation | | 8 1.9| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | Abscess | | 1 3.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | Femur, Hyperostosis | 2 | 5 2.6| Turbinate, Hyperostosis | | 2 2.5| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 10 2.2| Cyst | | 1 2.0| Hemorrhage | | 2 2.0| Hydrocephalus | | 1 2.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Foreign Body | | 1 2.0| Infiltration Cellular, Lymphocyte | | 3 2.3| Inflammation | | 6 1.8| Metaplasia, Squamous | | 1 2.0| Epithelium, Hyperplasia | 2 | 2 2.0| __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Congestion | | 2 3.0| Hemorrhage | 3 1 1 1 1 | 9 1.2| Infiltration Cellular, Histiocyte | | 2 1.0| Inflammation | | 3 2.0| Alveolar Epithelium, Hyperplasia | 1 2 | 35 1.9| __________________________________________________________________________|____________| Nose | + + + + + + | 56 | Angiectasis | | 1 2.0| Foreign Body | | 1 2.0| Hemorrhage | | 1 2.0| Inflammation | 1 | 7 1.7| Goblet Cell, Hyperplasia | 1 1 | 3 1.0| Nasolacrimal Duct, Inflammation | | 2 1.5| Olfactory Epithelium, Cytoplasmic | | | Alteration | 2 1 | 9 1.7| Respiratory Epithelium, Hyperplasia | 2 | 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 51 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 7| 7| 7| 7| 7| 7| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| | A | 150 PPM | 4| 4| 4| 4| 4| 4| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Ear | + | 2 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 56 | Congestion | | 1 2.0| Mineralization | 2 1 1 1 1 | 17 1.1| Nephropathy, Chronic | 1 1 1 1 1 | 44 1.3| Pigmentation | | 1 1.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 52 | Arteriole, Inflammation | | 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 52 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 6| 6| 6| 7| 7| 7| 6| 5| 4| 7| 7| 4| 7| 5| 7| 6| 7| 6| 5| 7| 7| 6| 6| 6| DAY ON TEST | 4| 6| 3| 9| 2| 2| 3| 4| 3| 9| 3| 2| 2| 3| 8| 2| 9| 3| 3| 3| 2| 3| 6| 4| 8| | 1| 6| 9| 2| 9| 9| 0| 0| 3| 8| 0| 9| 7| 0| 3| 9| 5| 0| 1| 2| 6| 0| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 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 | + + + M + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + A| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + A + + + + +| Hemorrhage | | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 1 1 1 | Basophilic Focus, Multiple | 1 | Clear Cell Focus | | Clear Cell Focus, Multiple | | Congestion | 2 | Cytoplasmic Alteration | 3 | Degeneration, Cystic | 2 2 1| Developmental Malformation | | Eosinophilic Focus | 3 2 | Eosinophilic Focus, Multiple | 2 | Fatty Change | | Hemorrhage | 1 | Hepatodiaphragmatic Nodule | 3 | Inflammation | | Mixed Cell Focus | | Mixed Cell Focus, Multiple | | Necrosis | 2 | Bile Duct, Hyperplasia | 2 | __________________________________________________________________________| Mesentery | + + + + + + | Fat, Necrosis | 3 2 2 3 1 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | 2 | Acinar Cell, Atrophy | 3 2 2 1 2 2 2 2 2 3 2 1 2 2 1 2 2| Acinar Cell, Hyperplasia | 3 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2| Inflammation | | Ulcer | 3 2 2 3| __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | 1 3 2| Ulcer | | Ulcer, Multiple | 3 2 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 53 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 6| 6| 6| 7| 7| 7| 6| 5| 4| 7| 7| 4| 7| 5| 7| 6| 7| 6| 5| 7| 7| 6| 6| 6| DAY ON TEST | 4| 6| 3| 9| 2| 2| 3| 4| 3| 9| 3| 2| 2| 3| 8| 2| 9| 3| 3| 3| 2| 3| 6| 4| 8| | 1| 6| 9| 2| 9| 9| 0| 0| 3| 8| 0| 9| 7| 0| 3| 9| 5| 0| 1| 2| 6| 0| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 2 2 2 2 2 2 2 2 1 3 2 1 1 2 1 3| Atrium, Dilatation | | Atrium, Thrombosis | 3 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Cytoplasmic Alteration | 2| Degeneration | 2 2 | Hyperplasia | 1 2| Hypertrophy | 2 | Vacuolization Cytoplasmic | 1 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Hyperplasia | 2 1 1 3 2 2 2 2 | __________________________________________________________________________| Islets, Pancreatic | + + + + | Hyperplasia | 2 3 | __________________________________________________________________________| Parathyroid Gland | + + + + M M + M + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 3| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | 2 | Pars Distalis, Cyst | | Pars Distalis, Hyperplasia | 3 2 3 2 | Pars Intermedia, Angiectasis | | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 1 3 2 1 | Follicle, Dilatation | 2 | Follicular Cell, Hyperplasia | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Coagulating Gland | + + | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | Granuloma Sperm | | Hypospermia | 3 4 3 2 4 4 4 4 4 3 4 2 3 4 | Inflammation, Chronic | 2 | Inflammation | 2 | Spermatocele | 4 | __________________________________________________________________________| Penis | | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + M + + +| _____________________________________________________________________________________________________________________| Page 54 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 6| 6| 6| 7| 7| 7| 6| 5| 4| 7| 7| 4| 7| 5| 7| 6| 7| 6| 5| 7| 7| 6| 6| 6| DAY ON TEST | 4| 6| 3| 9| 2| 2| 3| 4| 3| 9| 3| 2| 2| 3| 8| 2| 9| 3| 3| 3| 2| 3| 6| 4| 8| | 1| 6| 9| 2| 9| 9| 0| 0| 3| 8| 0| 9| 7| 0| 3| 9| 5| 0| 1| 2| 6| 0| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 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 | | | | Abscess | | Ectasia | 3 1 2 3 2 3 3 2 2 2 3 1 3 3 2 2 3 2 3| Inflammation | 1 2 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | 4 | Atrophy | 2| Concretion | 2 | Hyperplasia | 1 2 1 1 | Inflammation | 3 3 3 2 2 3 1 2 1 2 3 2 2| Epithelium, Cytoplasmic Alteration | 3 | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Cellular | 3 4 2 4 4 4 3 3 4 3 4 3 3 3 | Inflammation | 1 | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 4 2 3 1 3 | Arteriole, Inflammation | 2 | Bilateral, Atrophy | 3 3 4 4 3 3 2| Interstitial Cell, Hyperplasia | 2 2 1 1 2 2 1 1| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 4 3 3 2 3 4 3 | __________________________________________________________________________| Lymph Node | + + + | Lumbar, Hyperplasia, Plasma Cell | 4 | __________________________________________________________________________| Lymph Node, Bronchial | + + + M + + + M + + + + + + + M M + + + + + + + M| Hemorrhage | 3 2 | Hyperplasia, Plasma Cell | 3 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 2 | Hyperplasia, Plasma Cell | 2 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 4 1 3 3 1 3 | Hyperplasia, Plasma Cell | 2 1 3 | Pigmentation | 2 3 2 2 1| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hematopoietic Cell Proliferation | 3 3 | __________________________________________________________________________| Thymus | + + M + + + + + + M + M + + + M + + + + + + M + +| Atrophy | 3 3 1 2 2 4 3 3 3 4 2 4| Hemorrhage | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | _____________________________________________________________________________________________________________________| Page 55 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 6| 6| 6| 7| 7| 7| 6| 5| 4| 7| 7| 4| 7| 5| 7| 6| 7| 6| 5| 7| 7| 6| 6| 6| DAY ON TEST | 4| 6| 3| 9| 2| 2| 3| 4| 3| 9| 3| 2| 2| 3| 8| 2| 9| 3| 3| 3| 2| 3| 6| 4| 8| | 1| 6| 9| 2| 9| 9| 0| 0| 3| 8| 0| 9| 7| 0| 3| 9| 5| 0| 1| 2| 6| 0| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 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| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + M + + + + + M + + + + + + M| Galactocele | | Hyperplasia | 2 | Inflammation | 2 | Lactation | 1 2 3 2 3 2 2 3 2 | Pigmentation | 2 3 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Cranium, Hemorrhage | 2 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 2 1 3 2 3 | Hemorrhage | 1 | Hydrocephalus | 3 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 3 | Infiltration Cellular, Lymphocyte | 2 | Inflammation | 2 | Epithelium, Hyperplasia | | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 3| Hemorrhage | 1 | Inflammation | 2 1| Leukocytosis | 2 | Alveolar Epithelium, Hyperplasia | 1 | Bronchus, Hyperplasia | | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 2 2 | Foreign Body | 3 2 2 1 | Hemorrhage | 2 2 2 | Inflammation | 2 1 2 2 3 1 | Polyp Inflammatory | | Respiratory Epithelium, Hyperplasia | 2 2 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + | _____________________________________________________________________________________________________________________| Page 56 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 6| 6| 6| 7| 7| 7| 6| 5| 4| 7| 7| 4| 7| 5| 7| 6| 7| 6| 5| 7| 7| 6| 6| 6| DAY ON TEST | 4| 6| 3| 9| 2| 2| 3| 4| 3| 9| 3| 2| 2| 3| 8| 2| 9| 3| 3| 3| 2| 3| 6| 4| 8| | 1| 6| 9| 2| 9| 9| 0| 0| 3| 8| 0| 9| 7| 0| 3| 9| 5| 0| 1| 2| 6| 0| 7| 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 | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Cyst | 3| Hydronephrosis | | Nephropathy, Chronic | 2 2 2 2 2 2 3 2 2 2 2 2 1 2 2 2 3 2 3 2 2 4| Pigmentation | 3 2 | Pelvis, Hyperplasia | | Renal Tubule, Cytoplasmic Alteration | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Calculus Micro Observation Only | | Dilatation | 3 3 3 | Inflammation | | Transitional Epithelium, Hyperplasia | | _____________________________________________________________________________________________________________________| Page 57 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 4| 7| 6| 6| 7| 6| 6| 7| 4| 6| 6| 7| 5| 6| 6| 5| 7| 6| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 9| 3| 6| 8| 3| 5| 1| 2| 1| 1| 6| 3| 2| 6| 2| 6| 2| 3| 3| 3| 5| 5| 5| 5| | 0| 5| 0| 5| 1| 0| 4| 1| 9| 5| 7| 6| 0| 5| 6| 4| 3| 9| 9| 0| 0| 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 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| CONTROL | 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| | 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 | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + A + + + + A + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + A + + + + A + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + A + + A + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + A + + + + A + + + + + + + + + + + + + + + + + +| Hemorrhage | | __________________________________________________________________________| Liver | + A + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 1 1 1| Basophilic Focus, Multiple | 2 2 1 1 | Clear Cell Focus | | Clear Cell Focus, Multiple | 2 1 | Congestion | 3 2 | Cytoplasmic Alteration | | Degeneration, Cystic | 2 | Developmental Malformation | 2 | Eosinophilic Focus | 2 2 1 | Eosinophilic Focus, Multiple | | Fatty Change | 2 2 1 1 1 | Hemorrhage | 1| Hepatodiaphragmatic Nodule | | Inflammation | 1 | Mixed Cell Focus | 2 | Mixed Cell Focus, Multiple | 2 3 | Necrosis | 2 | Bile Duct, Hyperplasia | 2 3 | __________________________________________________________________________| Mesentery | | Fat, Necrosis | | __________________________________________________________________________| Pancreas | + A + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | Acinar Cell, Atrophy | 3 2 3 2 2 2 3 2 2 2 2 1 2| Acinar Cell, Hyperplasia | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 3 2 | Inflammation | 2 | Ulcer | 3 | __________________________________________________________________________| Stomach, Glandular | + A + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | | Ulcer | 3 | Ulcer, Multiple | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 58 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 4| 7| 6| 6| 7| 6| 6| 7| 4| 6| 6| 7| 5| 6| 6| 5| 7| 6| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 9| 3| 6| 8| 3| 5| 1| 2| 1| 1| 6| 3| 2| 6| 2| 6| 2| 3| 3| 3| 5| 5| 5| 5| | 0| 5| 0| 5| 1| 0| 4| 1| 9| 5| 7| 6| 0| 5| 6| 4| 3| 9| 9| 0| 0| 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 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| CONTROL | 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| | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 2 2 2 1 1 1 2 1 3 2 2 2 2 1 2 1| Atrium, Dilatation | 2 | Atrium, Thrombosis | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + A + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Cytoplasmic Alteration | | Degeneration | 2 | Hyperplasia | 1 1 2 2 1 | Hypertrophy | | Vacuolization Cytoplasmic | 2 1 2 2 | __________________________________________________________________________| Adrenal Medulla | + A + + + + + + + + + + + + + + + + + + + M + + +| Angiectasis | 2| Hyperplasia | 1 2 2 1 3 1 1 | __________________________________________________________________________| Islets, Pancreatic | + + + + | Hyperplasia | 2 2 | __________________________________________________________________________| Parathyroid Gland | M + + + + + + + M + + + M M + + + + + + + + + + +| Hyperplasia | 2 | __________________________________________________________________________| Pituitary Gland | M + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | | Pars Distalis, Cyst | 2 2 | Pars Distalis, Hyperplasia | 1 3 1 2 2| Pars Intermedia, Angiectasis | 2| __________________________________________________________________________| Thyroid Gland | + A + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 3 1| Follicle, Dilatation | 2 2 | Follicular Cell, Hyperplasia | 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Coagulating Gland | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | Granuloma Sperm | 3 | Hypospermia | 4 4 4 3 2 4 | Inflammation, Chronic | | Inflammation | 3 | Spermatocele | 3 | __________________________________________________________________________| Penis | | __________________________________________________________________________| Preputial Gland | + + + + + + + + + M + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 59 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 4| 7| 6| 6| 7| 6| 6| 7| 4| 6| 6| 7| 5| 6| 6| 5| 7| 6| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 9| 3| 6| 8| 3| 5| 1| 2| 1| 1| 6| 3| 2| 6| 2| 6| 2| 3| 3| 3| 5| 5| 5| 5| | 0| 5| 0| 5| 1| 0| 4| 1| 9| 5| 7| 6| 0| 5| 6| 4| 3| 9| 9| 0| 0| 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 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| CONTROL | 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| | 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 | | | | Abscess | 4 | Ectasia | 3 2 2 2 3 3 3 2 2 3 2 2 3 3 2 3 2 1| Inflammation | 2 1 2 2 2 2| __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | | Atrophy | | Concretion | 1 1 2 | Hyperplasia | 1 | Inflammation | 2 2 3 2 4 2 2 2 2 2 1 2 3 2| Epithelium, Cytoplasmic Alteration | | __________________________________________________________________________| Seminal Vesicle | + + + + + + A + + + + + + + + + + + + + + + + + +| Depletion Cellular | 3 4 3 3 4 3 3 3 | Inflammation | | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 4 2 3 | Arteriole, Inflammation | | Bilateral, Atrophy | 4 4 3 | Interstitial Cell, Hyperplasia | 2 1 1 1 1 1| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + A + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 2 3 2 3 2 1| __________________________________________________________________________| Lymph Node | + + | Lumbar, Hyperplasia, Plasma Cell | | __________________________________________________________________________| Lymph Node, Bronchial | M + + + + M + + + + + + M + + + + + + M + + + + +| Hemorrhage | 2 1 2 1| Hyperplasia, Plasma Cell | | Pigmentation | | __________________________________________________________________________| Lymph Node, Mandibular | + A + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 1| Hyperplasia, Plasma Cell | 2 2 | __________________________________________________________________________| Lymph Node, Mesenteric | + A + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 2 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + + M + + + + + + + + + + +| Hemorrhage | 1 2 1 4 2 1 1 1 1 2 2| Hyperplasia, Plasma Cell | | Pigmentation | | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Hematopoietic Cell Proliferation | 1 | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 4 2 3 3 3 3 3 1 3 2 3 2 2 2 2 2 3 | Hemorrhage | 3 1 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | _____________________________________________________________________________________________________________________| Page 60 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 4| 7| 6| 6| 7| 6| 6| 7| 4| 6| 6| 7| 5| 6| 6| 5| 7| 6| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 9| 3| 6| 8| 3| 5| 1| 2| 1| 1| 6| 3| 2| 6| 2| 6| 2| 3| 3| 3| 5| 5| 5| 5| | 0| 5| 0| 5| 1| 0| 4| 1| 9| 5| 7| 6| 0| 5| 6| 4| 3| 9| 9| 0| 0| 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 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| CONTROL | 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| | 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 | | | | | | __________________________________________________________________________| Mammary Gland | M + + + + + + + + + + + + + + + + + + + + + + + +| Galactocele | 3 | Hyperplasia | | Inflammation | | Lactation | 3 3 3 2 | Pigmentation | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Cranium, Hemorrhage | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 2 3 3 | Hemorrhage | 1 | Hydrocephalus | 3 2 2 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | | Infiltration Cellular, Lymphocyte | 1 | Inflammation | 2 2| Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 2 | Hemorrhage | 2 3 2 1 1| Inflammation | | Leukocytosis | | Alveolar Epithelium, Hyperplasia | 1 1 2 2 | Bronchus, Hyperplasia | 3 | __________________________________________________________________________| Nose | + A + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 3 3 | Foreign Body | 1 | Hemorrhage | 1 | Inflammation | 1 2 | Polyp Inflammatory | 1 | Respiratory Epithelium, Hyperplasia | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | | _____________________________________________________________________________________________________________________| Page 61 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 4| 7| 6| 6| 7| 6| 6| 7| 4| 6| 6| 7| 5| 6| 6| 5| 7| 6| 7| 7| 4| 4| 4| 4| DAY ON TEST | 3| 9| 3| 6| 8| 3| 5| 1| 2| 1| 1| 6| 3| 2| 6| 2| 6| 2| 3| 3| 3| 5| 5| 5| 5| | 0| 5| 0| 5| 1| 0| 4| 1| 9| 5| 7| 6| 0| 5| 6| 4| 3| 9| 9| 0| 0| 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 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| CONTROL | 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| | 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 | | | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + A + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Cyst | | Hydronephrosis | 2 | Nephropathy, Chronic | 2 2 1 2 2 2 1 2 2 2 2 2 2 1 1 2 2 1 2 1 2| Pigmentation | 2 | Pelvis, Hyperplasia | 3 | Renal Tubule, Cytoplasmic Alteration | 3 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Calculus Micro Observation Only | | Dilatation | 3 | Inflammation | 2 | Transitional Epithelium, Hyperplasia | 3 | _____________________________________________________________________________________________________________________| Page 62 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| | A | CONTROL | 5| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 53 | Hemorrhage | 2 | 1 2.0| __________________________________________________________________________|____________| Liver | + + + + + + | 55 | Basophilic Focus | 1 | 9 1.0| Basophilic Focus, Multiple | 1 | 6 1.3| Clear Cell Focus | 1 1 1 | 3 1.0| Clear Cell Focus, Multiple | | 2 1.5| Congestion | | 3 2.3| Cytoplasmic Alteration | | 1 3.0| Degeneration, Cystic | | 4 1.8| Developmental Malformation | | 1 2.0| Eosinophilic Focus | | 5 2.0| Eosinophilic Focus, Multiple | | 1 2.0| Fatty Change | | 5 1.4| Hemorrhage | | 2 1.0| Hepatodiaphragmatic Nodule | | 1 3.0| Inflammation | | 1 1.0| Mixed Cell Focus | | 1 2.0| Mixed Cell Focus, Multiple | | 2 2.5| Necrosis | | 2 2.0| Bile Duct, Hyperplasia | | 3 2.3| __________________________________________________________________________|____________| Mesentery | | 6 | Fat, Necrosis | | 6 2.3| __________________________________________________________________________|____________| Pancreas | + + + + + + | 55 | Infiltration Cellular, Lymphocyte | 1 | 2 1.5| Acinar Cell, Atrophy | 1 2 2 | 33 2.0| Acinar Cell, Hyperplasia | | 1 3.0| __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 56 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 55 | Hyperplasia | | 4 2.3| Inflammation | | 1 2.0| Ulcer | | 5 2.6| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 55 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| | A | CONTROL | 5| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | Necrosis | | 3 2.0| Ulcer | | 1 3.0| Ulcer, Multiple | | 2 2.5| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 2 1 1 1 1 1 | 42 1.7| Atrium, Dilatation | | 1 2.0| Atrium, Thrombosis | | 2 3.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 55 | Congestion | | 1 2.0| Cytoplasmic Alteration | | 1 2.0| Degeneration | | 3 2.0| Hyperplasia | | 7 1.4| Hypertrophy | | 1 2.0| Vacuolization Cytoplasmic | | 7 1.7| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 54 | Angiectasis | | 1 2.0| Hyperplasia | | 15 1.7| __________________________________________________________________________|____________| Islets, Pancreatic | | 8 | Hyperplasia | | 4 2.3| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 49 | Hyperplasia | | 4 2.3| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 55 | Pars Distalis, Angiectasis | | 1 2.0| Pars Distalis, Cyst | | 2 2.0| Pars Distalis, Hyperplasia | 2 2 | 11 2.1| Pars Intermedia, Angiectasis | | 1 2.0| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 55 | C-Cell, Hyperplasia | 1 | 8 1.8| Follicle, Dilatation | 2 | 4 2.0| Follicular Cell, Hyperplasia | | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Tissue NOS | + | 3 | _____________________________________________________________________________________________________________________| | 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 64 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| | A | CONTROL | 5| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Coagulating Gland | | 2 | __________________________________________________________________________|____________| Epididymis | + + + + + + | 56 | Atrophy | | 1 3.0| Granuloma Sperm | | 1 3.0| Hypospermia | | 20 3.5| Inflammation, Chronic | | 1 2.0| Inflammation | | 2 2.5| Spermatocele | | 2 3.5| __________________________________________________________________________|____________| Penis | + | 1 | __________________________________________________________________________|____________| Preputial Gland | + + + + + + | 54 | Abscess | | 1 4.0| Ectasia | 1 3 3 3 3 2 | 43 2.4| Inflammation | 1 1 1 | 11 1.5| __________________________________________________________________________|____________| Prostate | + + + + + + | 56 | Abscess | | 1 4.0| Atrophy | | 1 2.0| Concretion | 1 2 | 6 1.5| Hyperplasia | | 5 1.2| Inflammation | 1 2 2 2 2 | 32 2.2| Epithelium, Cytoplasmic Alteration | | 1 3.0| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + | 55 | Depletion Cellular | | 22 3.3| Inflammation | | 1 1.0| __________________________________________________________________________|____________| Testes | + + + + + + | 56 | Atrophy | | 8 2.8| Arteriole, Inflammation | | 1 2.0| Bilateral, Atrophy | | 10 3.3| Interstitial Cell, Hyperplasia | 2 2 | 16 1.4| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 55 | Hyperplasia | 1 1 | 16 2.5| __________________________________________________________________________|____________| Lymph Node | | 5 | Lumbar, Hyperplasia, Plasma Cell | | 1 4.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 47 | Hemorrhage | 2 2 1 1 | 10 1.7| Hyperplasia, Plasma Cell | | 1 3.0| Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 55 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| | A | CONTROL | 5| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | Hemorrhage | 2 2 | 6 2.0| Hyperplasia, Plasma Cell | | 3 2.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 55 | Hemorrhage | 3 | 4 2.5| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 55 | Hemorrhage | 2 3 1 3 2 | 22 2.0| Hyperplasia, Plasma Cell | | 3 2.0| Pigmentation | | 5 2.0| __________________________________________________________________________|____________| Spleen | + + + + + + | 56 | Congestion | | 1 2.0| Hematopoietic Cell Proliferation | 1 | 4 2.0| __________________________________________________________________________|____________| Thymus | + + + + + + | 51 | Atrophy | 2 3 2 1 2 2 | 35 2.5| Hemorrhage | | 3 2.3| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 52 | Galactocele | | 1 3.0| Hyperplasia | | 1 2.0| Inflammation | | 1 2.0| Lactation | | 13 2.4| Pigmentation | | 2 2.5| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | Inflammation | | 1 1.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | Cranium, Hemorrhage | | 1 2.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 9 2.4| Hemorrhage | | 2 1.0| Hydrocephalus | | 4 2.5| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Foreign Body | | 1 3.0| Infiltration Cellular, Lymphocyte | 2 | 3 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 66 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| | A | CONTROL | 5| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 6| | | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | Inflammation | | 3 2.0| Epithelium, Hyperplasia | | 1 2.0| __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Congestion | | 4 2.8| Hemorrhage | 1 1 1 | 9 1.4| Inflammation | 1 | 3 1.3| Leukocytosis | | 1 2.0| Alveolar Epithelium, Hyperplasia | | 5 1.4| Bronchus, Hyperplasia | | 1 3.0| __________________________________________________________________________|____________| Nose | + + + + + + | 55 | Angiectasis | | 7 2.4| Foreign Body | 1 | 6 1.7| Hemorrhage | 2 | 5 1.8| Inflammation | 1 | 9 1.7| Polyp Inflammatory | | 1 1.0| Respiratory Epithelium, Hyperplasia | | 2 2.0| __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 55 | Congestion | | 1 2.0| Cyst | | 1 3.0| Hydronephrosis | | 1 2.0| Nephropathy, Chronic | 2 2 1 1 2 2 | 49 1.9| Pigmentation | | 3 2.3| Pelvis, Hyperplasia | | 1 3.0| Renal Tubule, Cytoplasmic Alteration | | 1 3.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 56 | Calculus Micro Observation Only | 3 | 1 3.0| Dilatation | | 4 3.0| Inflammation | | 1 2.0| Transitional Epithelium, Hyperplasia | | 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 67 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 4| 7| 5| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| DAY ON TEST | 7| 3| 3| 7| 7| 2| 5| 9| 3| 2| 4| 2| 2| 2| 3| 3| 3| 1| 4| 2| 3| 2| 3| 3| 9| | 2| 0| 0| 6| 1| 9| 1| 5| 0| 9| 5| 9| 9| 9| 0| 0| 6| 8| 5| 9| 0| 9| 0| 0| 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 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| 37.5 PPM | 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | | __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + A + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + A + A + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + A + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + A + + + + + + + + + A + A + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + A + + + + + + + + + A + A + + + + + A| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 3 1 1 1 1 | Basophilic Focus, Multiple | 1 2 3 1 1 | Clear Cell Focus | | Clear Cell Focus, Multiple | 1 2 1 1 1 1 1 | Congestion | | Degeneration, Cystic | 1 1 3 2 1 1 1 | Eosinophilic Focus | 2 1 1 1 2 | Eosinophilic Focus, Multiple | 2 | Fatty Change | 3 1 1 1 1 2 4 1 1| Hemorrhage | | Hepatodiaphragmatic Nodule | 2 | Inflammation | 1 | Mixed Cell Focus | 2 1 | Necrosis | 1 2 | Pigmentation | | __________________________________________________________________________| Mesentery | | Fat, Necrosis | | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 | Acinar Cell, Atrophy | 1 3 2 2 2 1 2 1 1 2 3 2 1 1 2| Duct, Ectasia | 2 | __________________________________________________________________________| Pharynx | + | Palate, Hyperplasia, Squamous | 4 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | Inflammation | 1 2 | Ulcer | 3 | Ulcer, Multiple | 3 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | Inflammation | | Necrosis | 2 | Ulcer, Multiple | | __________________________________________________________________________| Tongue | | _____________________________________________________________________________________________________________________| Page 68 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 4| 7| 5| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| DAY ON TEST | 7| 3| 3| 7| 7| 2| 5| 9| 3| 2| 4| 2| 2| 2| 3| 3| 3| 1| 4| 2| 3| 2| 3| 3| 9| | 2| 0| 0| 6| 1| 9| 1| 5| 0| 9| 5| 9| 9| 9| 0| 0| 6| 8| 5| 9| 0| 9| 0| 0| 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 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| 37.5 PPM | 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 2 2 2 1 2 2 2 2 2 1 2 2 2 2 3 2 2 2 2 2 2 3| Inflammation | | Atrium, Thrombosis | | Valve, Inflammation | 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | 2 | Hyperplasia | 2 2 2| Hypertrophy | 2 1 | Vacuolization Cytoplasmic | 3 2 3 2 2 2 3 1 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 1 2 1 2 2 1 2 1 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + | Hyperplasia | 2 | __________________________________________________________________________| Parathyroid Gland | + + + + + + M + + M + + + + + + + + M M + + + + +| Hyperplasia | 2 3 2 1 3 3 | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Pars Distalis, Angiectasis | 3 4 3 4 | Pars Distalis, Cyst | 1 4 2 | Pars Distalis, Hemorrhage | | Pars Distalis, Hyperplasia | 3 2 3 3 2 2 | Pars Intermedia, Cyst | | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 2| _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | 3| Hypospermia | 4 4 3 3 4 4 2 2 4 3 3 4 4 4 4 | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 2 2 1 2 3 3 2 2 2 3 2 2 2 3 3 2 1 2 3| Hyperplasia | | Inflammation | 2 2 1 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Concretion | 1 | Hyperplasia | 2 2 | _____________________________________________________________________________________________________________________| Page 69 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 4| 7| 5| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| DAY ON TEST | 7| 3| 3| 7| 7| 2| 5| 9| 3| 2| 4| 2| 2| 2| 3| 3| 3| 1| 4| 2| 3| 2| 3| 3| 9| | 2| 0| 0| 6| 1| 9| 1| 5| 0| 9| 5| 9| 9| 9| 0| 0| 6| 8| 5| 9| 0| 9| 0| 0| 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 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| 37.5 PPM | 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Inflammation | 3 2 2 2 2 2 2 2 4| Epithelium, Cytoplasmic Alteration | 2 2 | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Cellular | 3 3 3 2 4 2 4 2 3 3 4 3 | Ectasia | 4| __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 3 | Degeneration | 2 | Hypospermia | | Arteriole, Inflammation | 2 3 2 2 | Bilateral, Atrophy | | Bilateral, Degeneration | 2 | Interstitial Cell, Hyperplasia | 2 2 1 3 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 4 3 4 2 2 3 2| __________________________________________________________________________| Lymph Node, Bronchial | + M + M + + + M + + + + + M + + + + + M + + M M M| Hemorrhage | 3 2 2 3 | Inflammation | | Pigmentation | 2 1 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + M + + + + + + +| Cyst | 3 | Hemorrhage | 2 | Hyperplasia, Lymphoid | | Hyperplasia, Plasma Cell | 3 3 | Pigmentation | 1 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 1 1 1 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 2 1 2 3 1 1 2 1 2 2 1 1 | Hyperplasia, Plasma Cell | 2 | Pigmentation | 2 2 1 2 2 1 2 2 1 2 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Fibrosis | 2 | Hematopoietic Cell Proliferation | 2 3 3 2 | Capsule, Fibrosis | 1 | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 2 3 3 3 3 2 2 1 1 2 2 2 1 4 2 3 2 2 1 3| Hemorrhage | 3 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + M + + + M + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 70 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 4| 7| 5| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| DAY ON TEST | 7| 3| 3| 7| 7| 2| 5| 9| 3| 2| 4| 2| 2| 2| 3| 3| 3| 1| 4| 2| 3| 2| 3| 3| 9| | 2| 0| 0| 6| 1| 9| 1| 5| 0| 9| 5| 9| 9| 9| 0| 0| 6| 8| 5| 9| 0| 9| 0| 0| 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 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| 37.5 PPM | 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | | | Galactocele | 3 | Lactation | 3 3 2 3 2 2 2 2 | Pigmentation | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Pinna, Parakeratosis | 3 | Subcutaneous Tissue, Abscess | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Calvarium, Hemorrhage | | Coccygeal, Fracture | 3 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 3 2 3 2 2 3 2 2 3 | Hemorrhage | 1| Hydrocephalus | 3 2 | Infiltration Cellular, Lymphocyte | 2 | __________________________________________________________________________| Spinal Cord | +| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | Epithelium, Hyperplasia | | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Hemorrhage | 1 1 1 1 1 | Infiltration Cellular, Histiocyte | | Inflammation | 1 3 1 1| Leukocytosis | 3 | Necrosis | | Alveolar Epithelium, Hyperplasia | 2 1 2 3 2 | Artery, Thrombosis | 2 | Goblet Cell, Hyperplasia | 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Foreign Body | 1 | Inflammation | 2 2 2 2 1 | Goblet Cell, Hyperplasia | | Nasolacrimal Duct, Inflammation | 2 2 | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 | Respiratory Epithelium, Hyperplasia | 2 2 | Respiratory Epithelium, Metaplasia, | | _____________________________________________________________________________________________________________________| Page 71 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 5| 4| 7| 5| 6| 7| 7| 6| 7| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 6| DAY ON TEST | 7| 3| 3| 7| 7| 2| 5| 9| 3| 2| 4| 2| 2| 2| 3| 3| 3| 1| 4| 2| 3| 2| 3| 3| 9| | 2| 0| 0| 6| 1| 9| 1| 5| 0| 9| 5| 9| 9| 9| 0| 0| 6| 8| 5| 9| 0| 9| 0| 0| 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 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| 37.5 PPM | 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| | 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | Squamous | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Lacrimal Gland | + | __________________________________________________________________________| Zymbal's Gland | + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 3 | Inflammation | | Nephropathy, Chronic | 4 3 2 3 2 2 4 3 2 1 1 3 3 2 2 3 4 4 2 2 3 2 2| Pigmentation | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | | Inflammation | 3| _____________________________________________________________________________________________________________________| Page 72 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 6| 7| 3| 6| 4| 7| 7| 7| 6| 7| 6| 7| 7| 6| 7| 7| 5| 4| 4| 4| 4| DAY ON TEST | 0| 5| 0| 3| 8| 3| 5| 4| 3| 2| 2| 2| 5| 0| 7| 2| 3| 6| 2| 2| 6| 5| 5| 5| 5| | 1| 5| 2| 0| 2| 0| 3| 6| 6| 9| 9| 0| 1| 0| 5| 9| 0| 3| 9| 9| 8| 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 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| 37.5 PPM | 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 3 | __________________________________________________________________________| 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 A A + + + + + A + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 3 1 2 | Basophilic Focus, Multiple | 1 1 1 2 1 | Clear Cell Focus | 1 | Clear Cell Focus, Multiple | 1 1 | Congestion | 2 2 | Degeneration, Cystic | 2 2 1 2 1| Eosinophilic Focus | 1 2 | Eosinophilic Focus, Multiple | 2 2 2 | Fatty Change | 3 2 2 | Hemorrhage | 1 1 | Hepatodiaphragmatic Nodule | | Inflammation | | Mixed Cell Focus | 2 3 | Necrosis | 1 4 | Pigmentation | 2 | __________________________________________________________________________| Mesentery | A + | Fat, Necrosis | 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | Acinar Cell, Atrophy | 2 2 1 2 1 1 1 2 2 1 2 1 2| Duct, Ectasia | | __________________________________________________________________________| Pharynx | | Palate, Hyperplasia, Squamous | | __________________________________________________________________________| Salivary Glands | + + + + + + A + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 3 | Inflammation | 1 2 | Ulcer | 3 2 | Ulcer, Multiple | 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | Inflammation | 2 | Necrosis | 2 2 | Ulcer, Multiple | 3 | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| Page 73 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 6| 7| 3| 6| 4| 7| 7| 7| 6| 7| 6| 7| 7| 6| 7| 7| 5| 4| 4| 4| 4| DAY ON TEST | 0| 5| 0| 3| 8| 3| 5| 4| 3| 2| 2| 2| 5| 0| 7| 2| 3| 6| 2| 2| 6| 5| 5| 5| 5| | 1| 5| 2| 0| 2| 0| 3| 6| 6| 9| 9| 0| 1| 0| 5| 9| 0| 3| 9| 9| 8| 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 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| 37.5 PPM | 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM - cont | | | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 2 1 1 1 2 1 2 1 2 2 2 2 2 2 1 1 2 1 1 1 1 1| Inflammation | 2 2 | Atrium, Thrombosis | 3 | Valve, Inflammation | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | | Hyperplasia | | Hypertrophy | 2 | Vacuolization Cytoplasmic | 2 3 2 2 1 1 3 1 2 1 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + M + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 1 1 | __________________________________________________________________________| Islets, Pancreatic | + + + | Hyperplasia | 3 2 | __________________________________________________________________________| Parathyroid Gland | M + + + + + + + + + + + + M + + + + + + + + + + +| Hyperplasia | | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 4 | Pars Distalis, Angiectasis | 3 4 1| Pars Distalis, Cyst | 1 1 | Pars Distalis, Hemorrhage | 2 | Pars Distalis, Hyperplasia | 1 2 2 2 2 2 3 2 2 2 1 2| Pars Intermedia, Cyst | 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | 3 | Hypospermia | 4 4 2 4 3 4 4 4 4 4 2 | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectasia | 3 2 3 2 2 2 3 4 3 3 2 3 2 2 3 2 3 2 2 2 3 2 2 2| Hyperplasia | 2 | Inflammation | 2 1 1 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Concretion | 1 1 2 1| Hyperplasia | 1 2 | _____________________________________________________________________________________________________________________| Page 74 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 6| 7| 3| 6| 4| 7| 7| 7| 6| 7| 6| 7| 7| 6| 7| 7| 5| 4| 4| 4| 4| DAY ON TEST | 0| 5| 0| 3| 8| 3| 5| 4| 3| 2| 2| 2| 5| 0| 7| 2| 3| 6| 2| 2| 6| 5| 5| 5| 5| | 1| 5| 2| 0| 2| 0| 3| 6| 6| 9| 9| 0| 1| 0| 5| 9| 0| 3| 9| 9| 8| 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 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| 37.5 PPM | 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Inflammation | 3 2 2 2 3 2 1 3 2| Epithelium, Cytoplasmic Alteration | | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Cellular | 4 3 3 1 4 4 2 3 3 3 3 | Ectasia | | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 4 3 4 3 | Degeneration | | Hypospermia | 2 | Arteriole, Inflammation | 3 2 | Bilateral, Atrophy | 3 4 | Bilateral, Degeneration | | Interstitial Cell, Hyperplasia | 2 2 2 1 2 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + A + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 2 2 3 2 3 1 | __________________________________________________________________________| Lymph Node, Bronchial | M + + + + + + M + M + + + + + + + + M M + + + + +| Hemorrhage | 2 1 3 3 1 3 1 3 1 | Inflammation | 2 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Hemorrhage | 1 3 2 | Hyperplasia, Lymphoid | 3 | Hyperplasia, Plasma Cell | 2 1 2 3 2 | Pigmentation | | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 1 2 2 1 1 | __________________________________________________________________________| Lymph Node, Mediastinal | M + + + M + + + + + + + M + + + + + + + + + + + +| Hemorrhage | 1 3 1 2 1 1 3 2 2 3 2 3 2 1 2 1 2 1| Hyperplasia, Plasma Cell | 2 | Pigmentation | 1 2 1 2 | __________________________________________________________________________| Spleen | + + + + + + A + + + + + + + + + + + + + + + + + +| Congestion | 2 | Fibrosis | | Hematopoietic Cell Proliferation | 2 2 | Capsule, Fibrosis | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 4 2 1 4 2 2 1 2 3 2 1 1 3 1 3 2 1 2| Hemorrhage | 1 2 1 2 1 1 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + M + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 75 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 6| 7| 3| 6| 4| 7| 7| 7| 6| 7| 6| 7| 7| 6| 7| 7| 5| 4| 4| 4| 4| DAY ON TEST | 0| 5| 0| 3| 8| 3| 5| 4| 3| 2| 2| 2| 5| 0| 7| 2| 3| 6| 2| 2| 6| 5| 5| 5| 5| | 1| 5| 2| 0| 2| 0| 3| 6| 6| 9| 9| 0| 1| 0| 5| 9| 0| 3| 9| 9| 8| 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 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| 37.5 PPM | 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | | | Galactocele | 3 | Lactation | 2 2 2 3 2 3 3 3 2 3 | Pigmentation | 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Pinna, Parakeratosis | | Subcutaneous Tissue, Abscess | 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Calvarium, Hemorrhage | 2 | Coccygeal, Fracture | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 1 2 3 2 1 3 2 | Hemorrhage | 3 | Hydrocephalus | 2 | Infiltration Cellular, Lymphocyte | | __________________________________________________________________________| Spinal Cord | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 1 | Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 3 2 3 | Hemorrhage | 1 2 2 1 1 2 2| Infiltration Cellular, Histiocyte | 2 | Inflammation | 1 1 4 3 | Leukocytosis | | Necrosis | 2 | Alveolar Epithelium, Hyperplasia | 2 1 1 1 2| Artery, Thrombosis | | Goblet Cell, Hyperplasia | | __________________________________________________________________________| Nose | + + + + + + A + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 3 | Foreign Body | 2 2 | Inflammation | 2 2 3 2 2 | Goblet Cell, Hyperplasia | 2 2| Nasolacrimal Duct, Inflammation | 2 | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 | Respiratory Epithelium, Hyperplasia | 1| Respiratory Epithelium, Metaplasia, | | _____________________________________________________________________________________________________________________| Page 76 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 5| 7| 7| 6| 7| 3| 6| 4| 7| 7| 7| 6| 7| 6| 7| 7| 6| 7| 7| 5| 4| 4| 4| 4| DAY ON TEST | 0| 5| 0| 3| 8| 3| 5| 4| 3| 2| 2| 2| 5| 0| 7| 2| 3| 6| 2| 2| 6| 5| 5| 5| 5| | 1| 5| 2| 0| 2| 0| 3| 6| 6| 9| 9| 0| 1| 0| 5| 9| 0| 3| 9| 9| 8| 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 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| 37.5 PPM | 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| | 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | Squamous | 2 2 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Lacrimal Gland | | __________________________________________________________________________| Zymbal's Gland | + + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + A + + + + + + + + + + + + + + + + + +| Cyst | | Inflammation | 2 | Nephropathy, Chronic | 4 1 2 2 2 2 2 3 2 2 2 3 2 2 2 2 2 3 2 1 1 2 2| Pigmentation | 3 2 | __________________________________________________________________________| Urinary Bladder | + + + + + + A + + + + + + + + + + + + + + + + + +| Dilatation | 3 | Inflammation | | _____________________________________________________________________________________________________________________| Page 77 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | 37.5 PPM | 6| 6| 6| 6| 6| 6| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 56 | Ectasia | | 1 3.0| __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 51 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 50 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 46 | __________________________________________________________________________|____________| Liver | + + + + + + | 56 | Basophilic Focus | 1 1 | 11 1.5| Basophilic Focus, Multiple | 1 | 11 1.4| Clear Cell Focus | | 1 1.0| Clear Cell Focus, Multiple | | 9 1.1| Congestion | | 2 2.0| Degeneration, Cystic | | 12 1.5| Eosinophilic Focus | | 7 1.4| Eosinophilic Focus, Multiple | | 4 2.0| Fatty Change | | 12 1.8| Hemorrhage | 1 | 3 1.0| Hepatodiaphragmatic Nodule | X | 2 2.0| Inflammation | | 1 1.0| Mixed Cell Focus | | 4 2.0| Necrosis | | 4 2.0| Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Mesentery | | 1 | Fat, Necrosis | | 1 3.0| __________________________________________________________________________|____________| Pancreas | + + + + + + | 56 | Inflammation | | 1 2.0| Acinar Cell, Atrophy | 2 2 1 2 | 32 1.7| Duct, Ectasia | | 1 2.0| __________________________________________________________________________|____________| Pharynx | | 1 | Palate, Hyperplasia, Squamous | | 1 4.0| __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 55 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 56 | Hyperplasia | | 3 2.3| Inflammation | | 4 1.5| Ulcer | | 3 2.7| Ulcer, Multiple | | 2 2.5| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 56 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | 37.5 PPM | 6| 6| 6| 6| 6| 6| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | Hyperplasia | | 1 2.0| Inflammation | | 1 2.0| Necrosis | | 3 2.0| Ulcer, Multiple | | 1 3.0| __________________________________________________________________________|____________| Tongue | | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 1 1 1 1 1 2 | 53 1.7| Inflammation | | 2 2.0| Atrium, Thrombosis | | 1 3.0| Valve, Inflammation | | 1 3.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 56 | Degeneration | | 1 2.0| Hyperplasia | 1 | 4 1.8| Hypertrophy | | 3 1.7| Vacuolization Cytoplasmic | | 19 2.0| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 55 | Hyperplasia | | 14 1.4| __________________________________________________________________________|____________| Islets, Pancreatic | | 9 | Hyperplasia | | 3 2.3| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 50 | Hyperplasia | | 6 2.3| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 56 | Hemorrhage | | 1 4.0| Pars Distalis, Angiectasis | | 7 3.1| Pars Distalis, Cyst | | 5 1.8| Pars Distalis, Hemorrhage | | 1 2.0| Pars Distalis, Hyperplasia | 2 1 1 3 | 22 2.0| Pars Intermedia, Cyst | | 1 2.0| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 56 | C-Cell, Hyperplasia | 1 | 5 1.6| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | 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 79 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | 37.5 PPM | 6| 6| 6| 6| 6| 6| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + | 56 | Granuloma Sperm | | 2 3.0| Hypospermia | | 26 3.5| __________________________________________________________________________|____________| Preputial Gland | + + + + + + | 56 | Ectasia | 2 2 1 2 3 2 | 49 2.3| Hyperplasia | | 1 2.0| Inflammation | 1 3 1 | 9 1.6| __________________________________________________________________________|____________| Prostate | + + + + + + | 56 | Concretion | 1 1 | 7 1.1| Hyperplasia | | 4 1.8| Inflammation | 2 2 1 1 2 1 | 24 2.1| Epithelium, Cytoplasmic Alteration | | 2 2.0| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + | 56 | Depletion Cellular | | 23 3.0| Ectasia | | 1 4.0| __________________________________________________________________________|____________| Testes | + + + + + + | 56 | Atrophy | | 6 3.2| Degeneration | | 1 2.0| Hypospermia | | 1 2.0| Arteriole, Inflammation | | 6 2.3| Bilateral, Atrophy | | 2 3.5| Bilateral, Degeneration | | 1 2.0| Interstitial Cell, Hyperplasia | 2 | 12 1.9| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 55 | Hyperplasia | | 15 2.5| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 43 | Hemorrhage | 1 1 1 1 1 | 18 1.8| Inflammation | | 1 2.0| Pigmentation | | 3 1.7| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 55 | Cyst | | 1 3.0| Hemorrhage | | 4 2.0| Hyperplasia, Lymphoid | | 1 3.0| Hyperplasia, Plasma Cell | | 7 2.3| Pigmentation | | 1 1.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 56 | Hemorrhage | 1 1 | 12 1.4| __________________________________________________________________________________________________________________________________ * : 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 80 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | 37.5 PPM | 6| 6| 6| 6| 6| 6| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 52 | Hemorrhage | 1 3 2 2 1 | 36 1.8| Hyperplasia, Plasma Cell | | 2 2.0| Pigmentation | | 14 1.6| __________________________________________________________________________|____________| Spleen | + + + + + + | 55 | Congestion | | 2 2.0| Fibrosis | | 1 2.0| Hematopoietic Cell Proliferation | | 6 2.3| Capsule, Fibrosis | | 1 1.0| __________________________________________________________________________|____________| Thymus | + + + + + + | 56 | Atrophy | 1 2 2 | 43 2.1| Hemorrhage | | 8 1.8| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 53 | Galactocele | | 2 3.0| Lactation | | 18 2.4| Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | Pinna, Parakeratosis | | 1 3.0| Subcutaneous Tissue, Abscess | | 1 4.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | Calvarium, Hemorrhage | | 1 2.0| Coccygeal, Fracture | | 1 3.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 17 2.3| Hemorrhage | | 2 2.0| Hydrocephalus | | 3 2.3| Infiltration Cellular, Lymphocyte | | 1 2.0| __________________________________________________________________________|____________| Spinal Cord | | 1 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Inflammation | | 2 1.0| 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 81 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| | A | 37.5 PPM | 6| 6| 6| 6| 6| 6| | L | | 3| 4| 5| 6| 7| 8| | | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Congestion | | 5 2.4| Hemorrhage | 1 1 1 | 15 1.3| Infiltration Cellular, Histiocyte | | 1 2.0| Inflammation | | 8 1.9| Leukocytosis | | 1 3.0| Necrosis | | 1 2.0| Alveolar Epithelium, Hyperplasia | 1 | 11 1.6| Artery, Thrombosis | | 1 2.0| Goblet Cell, Hyperplasia | | 1 2.0| __________________________________________________________________________|____________| Nose | + + + + + + | 55 | Angiectasis | | 4 2.3| Foreign Body | | 3 1.7| Inflammation | | 10 2.0| Goblet Cell, Hyperplasia | 3 | 3 2.3| Nasolacrimal Duct, Inflammation | | 3 2.0| Olfactory Epithelium, Cytoplasmic | | | Alteration | 1 | 3 1.7| Respiratory Epithelium, Hyperplasia | | 3 1.7| Respiratory Epithelium, Metaplasia, | | | Squamous | | 2 2.0| __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Lacrimal Gland | | 1 | __________________________________________________________________________|____________| Zymbal's Gland | | 3 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 55 | Cyst | | 1 3.0| Inflammation | | 1 2.0| Nephropathy, Chronic | 2 1 1 2 2 2 | 52 2.3| Pigmentation | | 2 2.5| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 55 | Dilatation | | 1 3.0| Inflammation | | 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| DAY ON TEST | 0| 3| 3| 3| 2| 3| 3| 2| 3| 3| 3| 3| 2| 3| 2| 2| 2| 2| 3| 2| 2| 3| 3| 4| 3| | 6| 0| 0| 0| 9| 1| 0| 9| 0| 0| 0| 0| 9| 0| 9| 9| 9| 9| 0| 9| 9| 0| 0| 0| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 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 | 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| 75 PPM | 2| 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| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Lymphoid | 2 | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 | Basophilic Focus, Multiple | 2 1 2 2 1 1 1 1 2 1 3 2 1 2| Clear Cell Focus | 1 | Clear Cell Focus, Multiple | 2 1 1 1 1 | Degeneration, Cystic | 1 2 2 2 2 2 2 2 2 2| Eosinophilic Focus | 2 1 2 1 2 | Eosinophilic Focus, Multiple | 2 3 3 2 2 1 3| Fatty Change | 2 1 4 | Inflammation | 2 | Mixed Cell Focus | 2 | Mixed Cell Focus, Multiple | 2 2 | Necrosis | 2 | Bile Duct, Hyperplasia | 2 | __________________________________________________________________________| Mesentery | + + | Fat, Necrosis | 3 2 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectopic Liver | 2| Infiltration Cellular, Lymphocyte | | Acinar Cell, Atrophy | 1 2 2 1 2 2 1 2 1 3 2 3 2 2 2| Artery, Inflammation | 4 3 | Duct, Ectasia | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | 1 | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 3 | Inflammation | 3 2 | Ulcer | 2 2 | Ulcer, Multiple | 4 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | Ulcer, Multiple | 3 | __________________________________________________________________________| Tongue | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 83 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| DAY ON TEST | 0| 3| 3| 3| 2| 3| 3| 2| 3| 3| 3| 3| 2| 3| 2| 2| 2| 2| 3| 2| 2| 3| 3| 4| 3| | 6| 0| 0| 0| 9| 1| 0| 9| 0| 0| 0| 0| 9| 0| 9| 9| 9| 9| 0| 9| 9| 0| 0| 0| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 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 | 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| 75 PPM | 2| 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| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | Cardiomyopathy | 2 2 2 1 1 3 2 1 2 1 2 1 1 1 2 2 3 1 1 2 2 2 1 2| Atrium, Thrombosis | 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Degeneration | | Hyperplasia | 2 1 1 2 | Hypertrophy | 3 2 | Vacuolization Cytoplasmic | 2 2 2 2 2 1 2 2 1| __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 1 3 1 2 2 1 1 2 2 1 1 1 | __________________________________________________________________________| Islets, Pancreatic | + + | Hyperplasia | | __________________________________________________________________________| Parathyroid Gland | + + + + M + + + + + M + M + + + + + + + M + + + +| Hyperplasia | 2 2 | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | | Pars Distalis, Cyst | 3 2 | Pars Distalis, Hemorrhage | 2 | Pars Distalis, Hyperplasia | 2 2 2 1 3 3 2 1 3 2 3 3| __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 1 3 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | Granuloma Sperm | 3| Hypospermia | 4 4 2 4 4 2 4 4 4 4 2 3 2 3 4| Inflammation | 2 2| __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | 2 | Ectasia | 3 2 3 3 2 1 2 2 1 3 2 3 1 2 3 2 2 3 2 2 | Hyperplasia | 3 3 4 | Inflammation | 2 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Concretion | 1 | Congestion | | Hyperplasia | 1 1 1 | Inflammation | 1 2 2 2 1 2 2 3 2 3 1| __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 84 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| DAY ON TEST | 0| 3| 3| 3| 2| 3| 3| 2| 3| 3| 3| 3| 2| 3| 2| 2| 2| 2| 3| 2| 2| 3| 3| 4| 3| | 6| 0| 0| 0| 9| 1| 0| 9| 0| 0| 0| 0| 9| 0| 9| 9| 9| 9| 0| 9| 9| 0| 0| 0| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 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 | 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| 75 PPM | 2| 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| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Depletion Cellular | 2 4 3 3 2 4 4 4 2 2 3 4 | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 1 3 3 3 | Arteriole, Inflammation | 2 1 2 3 2 2| Bilateral, Atrophy | 4| Interstitial Cell, Hyperplasia | 1 1 2 1 1 3 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Hyperplasia | 3 2 | __________________________________________________________________________| Lymph Node, Bronchial | + + M M + + + + M + + + M + + M M + M + + + + M +| Hemorrhage | 3 1 1 1 3 1 | Pigmentation | 1 1 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 3 2 | Hemorrhage | 3 2 | Hyperplasia, Plasma Cell | 3 2| Infiltration Cellular, Histiocyte | | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 1 2 | __________________________________________________________________________| Lymph Node, Mediastinal | M + + M + + + + + + + + + + + + + + M + + + + + +| Hemorrhage | 2 2 2 2 1 1 1 2 2 2 3 1 | Hyperplasia, Lymphoid | 3| Infiltration Cellular, Histiocyte | | Pigmentation | 2 1 2 1 2 1 1 2 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | 3 | Fibrosis | 2 1 | Hematopoietic Cell Proliferation | 3 2 | Hemorrhage | 2 | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 1 1 3 3 1 2 1 1 2 2 2 2 2 2 2 2 4 1| Hemorrhage | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Lactation | 2 2 3 2 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 85 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| DAY ON TEST | 0| 3| 3| 3| 2| 3| 3| 2| 3| 3| 3| 3| 2| 3| 2| 2| 2| 2| 3| 2| 2| 3| 3| 4| 3| | 6| 0| 0| 0| 9| 1| 0| 9| 0| 0| 0| 0| 9| 0| 9| 9| 9| 9| 0| 9| 9| 0| 0| 0| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 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 | 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| 75 PPM | 2| 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| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM - cont | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 3 2 | Hemorrhage | | Hydrocephalus | | Necrosis | 2 | __________________________________________________________________________| Spinal Cord | + | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | 2 | Inflammation | 1 2 | Epithelium, Hyperplasia | | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hemorrhage | 1 | Inflammation | 2 2 | Alveolar Epithelium, Hyperplasia | 2 1 2 1 2 1 2 4 2 1 2 2 1 2| Arteriole, Inflammation | 2 | Artery, Inflammation | | Artery, Thrombosis | | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Foreign Body | 2 2 | Hemorrhage | | Inflammation | 2 2 | Goblet Cell, Hyperplasia | | Olfactory Epithelium, Cytoplasmic | | Alteration | 1 | Respiratory Epithelium, Hyperplasia | 2 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | | Hemorrhage | | Inflammation | | __________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Nephropathy, Chronic | 2 2 2 3 3 4 2 3 3 3 3 2 1 3 2 2 2 4 2 2 2 4 2 3 3| __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 86 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 2| 5| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 2| 2| 2| 3| 2| 0| 5| 8| 3| 2| 1| 2| 3| 3| 3| 6| 1| 0| 2| 2| 3| 5| 5| 5| 5| | 9| 9| 9| 0| 9| 0| 2| 4| 0| 9| 2| 9| 0| 0| 0| 7| 9| 3| 9| 9| 0| 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 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 | 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| 75 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| | 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + A + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + A + A + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + A + A + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + A A A + + + + + + + + + + + + + + + + +| Hyperplasia, Lymphoid | | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 1 1| Basophilic Focus, Multiple | 1 2 2 1 1 1 1 1 2 2 | Clear Cell Focus | 1 2 1 1 2 1| Clear Cell Focus, Multiple | 1 1 1 | Degeneration, Cystic | 1 1 2 2 1 | Eosinophilic Focus | 2 2 2 | Eosinophilic Focus, Multiple | 2 2 2 | Fatty Change | 2 3 3 | Inflammation | | Mixed Cell Focus | 2 | Mixed Cell Focus, Multiple | | Necrosis | 1 | Bile Duct, Hyperplasia | 2 2 | __________________________________________________________________________| Mesentery | + | Fat, Necrosis | 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectopic Liver | | Infiltration Cellular, Lymphocyte | 2 | Acinar Cell, Atrophy | 1 2 1 1 2 2 2 1 1 2 1 1 3 1 2 1| Artery, Inflammation | | Duct, Ectasia | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 | Inflammation | 4 | Ulcer | | Ulcer, Multiple | 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 3 | Ulcer, Multiple | | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 87 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 2| 5| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 2| 2| 2| 3| 2| 0| 5| 8| 3| 2| 1| 2| 3| 3| 3| 6| 1| 0| 2| 2| 3| 5| 5| 5| 5| | 9| 9| 9| 0| 9| 0| 2| 4| 0| 9| 2| 9| 0| 0| 0| 7| 9| 3| 9| 9| 0| 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 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 | 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| 75 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| | 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | Cardiomyopathy | 2 1 2 1 1 1 2 2 2 2 2 1 1 1 1 2 2 2 2 1 2 1 1 2 2| Atrium, Thrombosis | 2 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Degeneration | 2 | Hyperplasia | 2 2 | Hypertrophy | | Vacuolization Cytoplasmic | 1 1 2 3 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 3 2 | __________________________________________________________________________| Islets, Pancreatic | + + + | Hyperplasia | 2 2 | __________________________________________________________________________| Parathyroid Gland | + M + M + + + + + M + + + + M + + + + + + + + + +| Hyperplasia | 2 | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | 3 4 2 2 | Pars Distalis, Cyst | 3 | Pars Distalis, Hemorrhage | | Pars Distalis, Hyperplasia | 2 3 2 3 1 3 2 3 2 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 | Granuloma Sperm | | Hypospermia | 3 3 4 4 2 4 3 4 2 3 | Inflammation | | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | | Ectasia | 1 2 2 3 2 2 1 2 2 2 1 2 2 3 2 3 2 2 2 3 2 1 2| Hyperplasia | | Inflammation | 2 2 2 2 1 2| __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Concretion | 1 1 2| Congestion | | Hyperplasia | 1 1 2 | Inflammation | 2 3 2 2 3 2 1 2 2| __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 88 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 2| 5| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 2| 2| 2| 3| 2| 0| 5| 8| 3| 2| 1| 2| 3| 3| 3| 6| 1| 0| 2| 2| 3| 5| 5| 5| 5| | 9| 9| 9| 0| 9| 0| 2| 4| 0| 9| 2| 9| 0| 0| 0| 7| 9| 3| 9| 9| 0| 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 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 | 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| 75 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| | 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Depletion Cellular | 3 2 2 4 3 2 3 4 2 2 2 | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 | Arteriole, Inflammation | 1 3 2 2 | Bilateral, Atrophy | 4 2 2 | Interstitial Cell, Hyperplasia | 1 2 1 1| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 | Hyperplasia | 1 3 1 1 1 | __________________________________________________________________________| Lymph Node, Bronchial | + + + + M + + + M M + + + M M M + M + + + + + + +| Hemorrhage | 1 2 1 2 2 1 1| Pigmentation | | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Hemorrhage | 1 2 1 1 | Hyperplasia, Plasma Cell | 2 2 2 3 | Infiltration Cellular, Histiocyte | 3 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + M + + + + + + + + + + + +| Hemorrhage | 2 2 2 2 2 3 1 2 2 2 1 2 1 1 2| Hyperplasia, Lymphoid | | Infiltration Cellular, Histiocyte | 3 | Pigmentation | 1 1 2 1 1 | __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | 1 | Fibrosis | | Hematopoietic Cell Proliferation | 3 1 1 | Hemorrhage | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + M + + + + + + + + + + + +| Atrophy | 3 1 1 3 4 1 2 3 2 1 4 3 2 2 1 1 2 1 2| Hemorrhage | 2 1 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Lactation | 2 2 2 3 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 89 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 7| 7| 7| 2| 5| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 2| 2| 2| 3| 2| 0| 5| 8| 3| 2| 1| 2| 3| 3| 3| 6| 1| 0| 2| 2| 3| 5| 5| 5| 5| | 9| 9| 9| 0| 9| 0| 2| 4| 0| 9| 2| 9| 0| 0| 0| 7| 9| 3| 9| 9| 0| 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 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 | 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| 75 PPM | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| | 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM - cont | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 2 3 | Hemorrhage | 2 | Hydrocephalus | 2 | Necrosis | | __________________________________________________________________________| Spinal Cord | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lymphocyte | | Inflammation | | Epithelium, Hyperplasia | 1 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 2 2 | Hemorrhage | 2 1| Inflammation | 1 | Alveolar Epithelium, Hyperplasia | 2 2 3 2 2 2 1 1 2 1 2 1 2 3| Arteriole, Inflammation | | Artery, Inflammation | 2 | Artery, Thrombosis | 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 | Foreign Body | | Hemorrhage | 3 2 | Inflammation | 1 2 1 2 | Goblet Cell, Hyperplasia | 2 1 | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 | Respiratory Epithelium, Hyperplasia | 1 2 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + | Hemorrhage | 3 | Inflammation | 3 | __________________________________________________________________________| Zymbal's Gland | + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Nephropathy, Chronic | 3 2 2 2 2 2 2 3 2 2 2 3 1 2 3 4 2 3 2 1 1 1 1 1| __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 90 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 75 PPM | 7| 7| 7| 7| 7| 8| | L | | 5| 6| 7| 8| 9| 0| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 55 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 54 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 53 | Hyperplasia, Lymphoid | | 1 2.0| __________________________________________________________________________|____________| Liver | + + + + + + | 56 | Basophilic Focus | 1 1 | 6 1.0| Basophilic Focus, Multiple | 1 1 | 26 1.5| Clear Cell Focus | 1 | 8 1.3| Clear Cell Focus, Multiple | | 8 1.1| Degeneration, Cystic | | 15 1.7| Eosinophilic Focus | | 8 1.8| Eosinophilic Focus, Multiple | | 10 2.2| Fatty Change | 1 | 7 2.3| Inflammation | | 1 2.0| Mixed Cell Focus | | 2 2.0| Mixed Cell Focus, Multiple | | 2 2.0| Necrosis | | 2 1.5| Bile Duct, Hyperplasia | | 3 2.0| __________________________________________________________________________|____________| Mesentery | + | 4 | Fat, Necrosis | 2 | 4 2.5| __________________________________________________________________________|____________| Pancreas | + + + + + + | 56 | Ectopic Liver | | 1 2.0| Infiltration Cellular, Lymphocyte | | 1 2.0| Acinar Cell, Atrophy | 1 1 2 1 1 | 36 1.6| Artery, Inflammation | | 2 3.5| Duct, Ectasia | 1 | 1 1.0| __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 56 | Infiltration Cellular, Lymphocyte | | 1 1.0| __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 56 | Hyperplasia | | 5 2.4| Inflammation | | 3 3.0| Ulcer | | 2 2.0| Ulcer, Multiple | | 2 3.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 56 | Inflammation | | 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 91 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 75 PPM | 7| 7| 7| 7| 7| 8| | L | | 5| 6| 7| 8| 9| 0| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | Ulcer, Multiple | | 1 3.0| __________________________________________________________________________|____________| Tongue | | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 2 1 1 1 1 1 | 55 1.6| Atrium, Thrombosis | | 2 2.5| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 56 | Angiectasis | | 1 2.0| Degeneration | | 1 2.0| Hyperplasia | | 6 1.7| Hypertrophy | | 2 2.5| Vacuolization Cytoplasmic | | 15 1.8| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 56 | Hyperplasia | | 19 1.7| __________________________________________________________________________|____________| Islets, Pancreatic | | 5 | Hyperplasia | | 2 2.0| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 48 | Hyperplasia | | 3 2.0| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 56 | Pars Distalis, Angiectasis | | 4 2.8| Pars Distalis, Cyst | 1 | 4 2.3| Pars Distalis, Hemorrhage | | 1 2.0| Pars Distalis, Hyperplasia | 1 1 2 | 25 2.2| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 56 | C-Cell, Hyperplasia | | 5 1.6| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + | 56 | Atrophy | | 1 2.0| Granuloma Sperm | | 1 3.0| Hypospermia | | 25 3.3| Inflammation | | 2 2.0| __________________________________________________________________________|____________| Preputial Gland | + + + + + + | 56 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 75 PPM | 7| 7| 7| 7| 7| 8| | L | | 5| 6| 7| 8| 9| 0| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | Degeneration | | 1 2.0| Ectasia | 2 2 3 2 2 2 | 49 2.1| Hyperplasia | | 3 3.3| Inflammation | 1 2 2 2 2 | 12 1.8| __________________________________________________________________________|____________| Prostate | + + + + + + | 56 | Concretion | 1 1 1 | 7 1.1| Congestion | 1 | 1 1.0| Hyperplasia | | 6 1.2| Inflammation | 1 1 1 | 23 1.9| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + | 56 | Depletion Cellular | | 23 2.9| __________________________________________________________________________|____________| Testes | + + + + + + | 56 | Atrophy | | 6 2.3| Arteriole, Inflammation | | 10 2.0| Bilateral, Atrophy | | 4 3.0| Interstitial Cell, Hyperplasia | 1 1 | 12 1.3| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 56 | Hemorrhage | | 1 3.0| Hyperplasia | 1 | 8 1.6| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + M + | 40 | Hemorrhage | 1 1 2 1 1 | 18 1.4| Pigmentation | | 2 1.0| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 56 | Cyst | | 2 2.5| Hemorrhage | 1 | 7 1.6| Hyperplasia, Plasma Cell | | 6 2.3| Infiltration Cellular, Histiocyte | | 1 3.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 56 | Hemorrhage | 1 | 5 1.6| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 52 | Hemorrhage | 2 1 1 2 2 1 | 33 1.7| Hyperplasia, Lymphoid | | 1 3.0| Infiltration Cellular, Histiocyte | | 1 3.0| Pigmentation | | 13 1.4| __________________________________________________________________________|____________| Spleen | + + + + + + | 56 | Degeneration, Cystic | | 2 2.0| Fibrosis | | 2 1.5| __________________________________________________________________________________________________________________________________ * : 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 93 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 75 PPM | 7| 7| 7| 7| 7| 8| | L | | 5| 6| 7| 8| 9| 0| | | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | Hematopoietic Cell Proliferation | | 5 2.0| Hemorrhage | | 1 2.0| __________________________________________________________________________|____________| Thymus | + + + + + + | 55 | Atrophy | 2 1 1 1 | 42 1.9| Hemorrhage | | 2 1.5| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 56 | Lactation | | 10 2.2| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 6 2.7| Hemorrhage | | 1 2.0| Hydrocephalus | | 1 2.0| Necrosis | | 1 2.0| __________________________________________________________________________|____________| Spinal Cord | | 1 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Infiltration Cellular, Lymphocyte | | 1 2.0| Inflammation | 1 2 | 4 1.5| Epithelium, Hyperplasia | | 1 1.0| __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Congestion | | 3 2.3| Hemorrhage | 1 | 4 1.3| Inflammation | | 3 1.7| Alveolar Epithelium, Hyperplasia | | 28 1.8| Arteriole, Inflammation | | 1 2.0| Artery, Inflammation | | 1 2.0| Artery, Thrombosis | | 1 2.0| __________________________________________________________________________|____________| Nose | + + + + + + | 56 | Angiectasis | | 1 3.0| Foreign Body | 1 | 3 1.7| Hemorrhage | | 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 94 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| | A | 75 PPM | 7| 7| 7| 7| 7| 8| | L | | 5| 6| 7| 8| 9| 0| | | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | Inflammation | 1 | 7 1.6| Goblet Cell, Hyperplasia | 1 | 3 1.3| Olfactory Epithelium, Cytoplasmic | | | Alteration | | 2 1.5| Respiratory Epithelium, Hyperplasia | | 4 1.5| __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | | 1 | Hemorrhage | | 1 3.0| Inflammation | | 1 3.0| __________________________________________________________________________|____________| Zymbal's Gland | | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 56 | Nephropathy, Chronic | 1 1 2 1 1 2 | 55 2.2| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 56 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 6| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 6| 7| 7| 3| 7| 7| 7| 7| 7| DAY ON TEST | 3| 0| 3| 3| 6| 3| 3| 3| 2| 1| 2| 2| 3| 2| 2| 8| 1| 2| 2| 3| 2| 2| 2| 2| 3| | 0| 4| 6| 0| 4| 0| 0| 0| 2| 1| 9| 9| 0| 9| 9| 9| 0| 9| 1| 0| 9| 9| 9| 9| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 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| 150 PPM | 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 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| 1| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lipocyte | 3 | __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 | __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 | __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectopic Tissue | | Hyperplasia | | Inflammation | | __________________________________________________________________________| Intestine Small, Jejunum | + + A + A + + + + + + + + + + + A + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + A + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 1 | Basophilic Focus, Multiple | 2 2 2 2 2 3 2 1| Clear Cell Focus | 2 | Clear Cell Focus, Multiple | 1 | Congestion | 3 2 3 2 | Degeneration, Cystic | 1 1 | Eosinophilic Focus | 2 1 | Eosinophilic Focus, Multiple | 2 2 | Fatty Change | 3 1 2 1 1 4 2| Infiltration Cellular, Lymphocyte | 1 | Inflammation | | Mixed Cell Focus | 3 2 | Necrosis | | __________________________________________________________________________| Mesentery | + + + | Fat, Necrosis | 2 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 1 | Acinar Cell, Atrophy | 2 2 2 2 3 2 4 1 3 3 3 1 1 2 2| __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | 4 | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 | Inflammation | | Ulcer | 3 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | Ulcer | 2 2 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 96 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 6| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 6| 7| 7| 3| 7| 7| 7| 7| 7| DAY ON TEST | 3| 0| 3| 3| 6| 3| 3| 3| 2| 1| 2| 2| 3| 2| 2| 8| 1| 2| 2| 3| 2| 2| 2| 2| 3| | 0| 4| 6| 0| 4| 0| 0| 0| 2| 1| 9| 9| 0| 9| 9| 9| 0| 9| 1| 0| 9| 9| 9| 9| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 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| 150 PPM | 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 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| 1| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | Cardiomyopathy | 1 2 3 2 2 2 2 2 2 1 2 3 2 2 2 2 2 2 2 2 2 2| Atrium, Dilatation | 2 | Atrium, Thrombosis | 4 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Cytoplasmic Alteration | 2 | Degeneration | 3 2 | Hyperplasia | 2 2 2 | Hypertrophy | 2 | Vacuolization Cytoplasmic | 2 1 2 2 2 1 3 3 1 4 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 1 1 2 1| __________________________________________________________________________| Islets, Pancreatic | + + + + | Hyperplasia | 3 | __________________________________________________________________________| Parathyroid Gland | + + + + + + + M + + + + + M + + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + M + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | | Pars Distalis, Cyst | 2 | Pars Distalis, Hyperplasia | 3 2 3 2 2 2 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | 3 | Hypospermia | 3 4 2 4 4 4 2 4 4 4 3 4 3 4| __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | 3 | Ectasia | 2 3 2 1 2 2 2 2 2 3 3 2 3 1 2 1 | Hyperplasia | | Inflammation | 2 3 2 1 1 2 2 2 2 2 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Concretion | 1 2 2 2 | Hyperplasia | 2 2 1| Inflammation | 2 2 2 3 3 2 2 1 2 3 3 | Vacuolization Cytoplasmic | | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Cellular | 2 3 3 3 3 4 3 4 3 3 4 3 3 2 3 4 3 | Ectasia | | _____________________________________________________________________________________________________________________| Page 97 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 6| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 6| 7| 7| 3| 7| 7| 7| 7| 7| DAY ON TEST | 3| 0| 3| 3| 6| 3| 3| 3| 2| 1| 2| 2| 3| 2| 2| 8| 1| 2| 2| 3| 2| 2| 2| 2| 3| | 0| 4| 6| 0| 4| 0| 0| 0| 2| 1| 9| 9| 0| 9| 9| 9| 0| 9| 1| 0| 9| 9| 9| 9| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 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| 150 PPM | 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 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| 1| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Inflammation | | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 4 3 4 2 | Hypospermia | 3 | Arteriole, Inflammation | 2 | Bilateral, Atrophy | 4 | Interstitial Cell, Hyperplasia | 1 1 2 1 1 1 1 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Hyperplasia | 4 2 1 3 2 3 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node | + | Deep Cervical, Inflammation | 2 | Renal, Hemorrhage | 2 | __________________________________________________________________________| Lymph Node, Bronchial | + + + + + M + + + M M M M M M M + + M + + + M + +| Hemorrhage | 1 2 2 2 2 2 1 | Infiltration Cellular, Histiocyte | | Pigmentation | 1 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 | Hyperplasia, Lymphoid | | Hyperplasia, Plasma Cell | 3 2 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 3 3 3 2 1| __________________________________________________________________________| Lymph Node, Mediastinal | + + M + + + + + + + + + + + + + + + + + + + + + +| Depletion Lymphoid | 3 | Hemorrhage | 1 2 1 3 2 3 1 2 3 1 2 1 1 3 2| Hyperplasia, Plasma Cell | | Infiltration Cellular, Histiocyte | | Pigmentation | 2 2 2 2 1 1 1 2| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Degeneration, Cystic | 1 2 3 | Developmental Malformation | | Hematopoietic Cell Proliferation | 2 3 2 3 2 2 2 | Inflammation | | Necrosis | | __________________________________________________________________________| Thymus | + + + + + + + + + + M + + + + + + + + + + + + + +| Atrophy | 3 3 3 2 2 1 2 2 2 2 1 3 1 1 2 4 1 3 | Congestion | 3 | Cyst | 2 | _____________________________________________________________________________________________________________________| Page 98 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 6| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 6| 7| 7| 3| 7| 7| 7| 7| 7| DAY ON TEST | 3| 0| 3| 3| 6| 3| 3| 3| 2| 1| 2| 2| 3| 2| 2| 8| 1| 2| 2| 3| 2| 2| 2| 2| 3| | 0| 4| 6| 0| 4| 0| 0| 0| 2| 1| 9| 9| 0| 9| 9| 9| 0| 9| 1| 0| 9| 9| 9| 9| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 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| 150 PPM | 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 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| 1| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | Hemorrhage | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + M + M + + + + + + + + + + + + + +| Galactocele | 3 3 3 | Hyperplasia | 2 | Inflammation | | Lactation | 3 3 2 2 2 2 3 4 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Subcutaneous Tissue, Abscess | 3 | Tail, Hyperkeratosis | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 1 3 2 2 1 2 2 2 2 2 2| Hemorrhage | 1 | Hydrocephalus | 2 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | | Infiltration Cellular, Lymphocyte | 2 | Inflammation | 2 | Epithelium, Hyperplasia | | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Hemorrhage | | Infiltration Cellular, Histiocyte | | Inflammation | 2 | Alveolar Epithelium, Hyperplasia | 1 2 2 3 2 1 1 2 2 2 2 2 3 2 3 3 1 2 1| __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 3 | Foreign Body | | Hemorrhage | | Infiltration Cellular, Lymphocyte | 2 | Inflammation | 2 2 1 2 1| Goblet Cell, Hyperplasia | | Nasolacrimal Duct, Inflammation | 3 2 | Olfactory Epithelium, Cytoplasmic | | Alteration | | Respiratory Epithelium, Hyperplasia | 2 1| _____________________________________________________________________________________________________________________| Page 99 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 6| 6| 7| 5| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 5| 6| 7| 7| 3| 7| 7| 7| 7| 7| DAY ON TEST | 3| 0| 3| 3| 6| 3| 3| 3| 2| 1| 2| 2| 3| 2| 2| 8| 1| 2| 2| 3| 2| 2| 2| 2| 3| | 0| 4| 6| 0| 4| 0| 0| 0| 2| 1| 9| 9| 0| 9| 9| 9| 0| 9| 1| 0| 9| 9| 9| 9| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 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| 150 PPM | 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 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| 1| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Zymbal's Gland | + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 | Cyst | | Nephropathy, Chronic | 3 2 1 2 2 2 2 2 2 2 2 3 3 2 2 1 2 2 2 2 2 2 3 3| Pigmentation | 2 2 2 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Dilatation | 3 | Infiltration Cellular, Lymphocyte | | _____________________________________________________________________________________________________________________| Page 100 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 5| 6| 6| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 1| 2| 2| 6| 9| 1| 3| 3| 2| 8| 3| 2| 3| 4| 2| 2| 4| 2| 3| 2| 3| 5| 5| 5| 5| | 7| 9| 3| 7| 9| 1| 0| 0| 8| 2| 0| 9| 0| 0| 9| 9| 7| 9| 0| 9| 0| 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 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 | 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| 150 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + A + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Lipocyte | | __________________________________________________________________________| Intestine Large, Rectum | + + + + A + + + + + + + + + + + + + + + + + + + +| Inflammation | | __________________________________________________________________________| Intestine Large, Cecum | + + A + A + + + + + + + + + + + A + + + + + + + +| Inflammation | | __________________________________________________________________________| Intestine Small, Duodenum | + + + + A + + + + + + + + + + + + + + + + + + + +| Ectopic Tissue | | Hyperplasia | 3 | Inflammation | 2 | __________________________________________________________________________| Intestine Small, Jejunum | A + A + A + + + + + + + + + + + A + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + A + A + + + + + + + + + + + A + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 1 1 2 | Basophilic Focus, Multiple | 2 2 2 1 1 2 1 2 2 2 1| Clear Cell Focus | | Clear Cell Focus, Multiple | 2 2 | Congestion | 1 2 | Degeneration, Cystic | 2 2 | Eosinophilic Focus | | Eosinophilic Focus, Multiple | 2 1 | Fatty Change | 1 3 2 2 3 1 2 | Infiltration Cellular, Lymphocyte | | Inflammation | 3 | Mixed Cell Focus | 2 2 | Necrosis | 3 4 | __________________________________________________________________________| Mesentery | + + + + + | Fat, Necrosis | 3 3 2 3 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 | Acinar Cell, Atrophy | 1 2 1 3 3 2 2 2 2 2 2 2 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 | Inflammation | 3 | Ulcer | 4 | __________________________________________________________________________| Stomach, Glandular | + + + + A + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 1 | Ulcer | 3 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 101 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 5| 6| 6| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 1| 2| 2| 6| 9| 1| 3| 3| 2| 8| 3| 2| 3| 4| 2| 2| 4| 2| 3| 2| 3| 5| 5| 5| 5| | 7| 9| 3| 7| 9| 1| 0| 0| 8| 2| 0| 9| 0| 0| 9| 9| 7| 9| 0| 9| 0| 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 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 | 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| 150 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | Cardiomyopathy | 2 3 1 1 2 3 2 1 1 1 3 2 2 2 3 3 2 2 2 2 1 2 2 2| Atrium, Dilatation | | Atrium, Thrombosis | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Cytoplasmic Alteration | | Degeneration | | Hyperplasia | | Hypertrophy | 2 | Vacuolization Cytoplasmic | 1 2 3 3 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 4 1 2 1 | __________________________________________________________________________| Islets, Pancreatic | + | Hyperplasia | | __________________________________________________________________________| Parathyroid Gland | + + + M + + + + + + + + + M + + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Angiectasis | 2 3 4 2 | Pars Distalis, Cyst | 4 2 | Pars Distalis, Hyperplasia | 2 1 3 2 3 3 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 3 2 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | | Hypospermia | 3 4 3 3 3 4 4 4 3 4 4 3 4 4 4 | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Abscess | | Ectasia | 3 2 2 2 2 2 3 3 2 2 2 2 3 2 3 2 3 2 2| Hyperplasia | 3 | Inflammation | 1 2 1 2 1| __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Concretion | 2 2 1 1| Hyperplasia | 1 | Inflammation | 2 3 2 2 3 1 3 2 1 | Vacuolization Cytoplasmic | 2 | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Cellular | 4 2 3 3 4 3 2 1 3 2 3 2 3 4 | Ectasia | 3 | _____________________________________________________________________________________________________________________| Page 102 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 5| 6| 6| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 1| 2| 2| 6| 9| 1| 3| 3| 2| 8| 3| 2| 3| 4| 2| 2| 4| 2| 3| 2| 3| 5| 5| 5| 5| | 7| 9| 3| 7| 9| 1| 0| 0| 8| 2| 0| 9| 0| 0| 9| 9| 7| 9| 0| 9| 0| 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 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 | 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| 150 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Inflammation | 2 3 | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 1 | Hypospermia | | Arteriole, Inflammation | 3 3 1 3 | Bilateral, Atrophy | 3 3 4 2 3 3 | Interstitial Cell, Hyperplasia | 1 1 2 2 2 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Hyperplasia | 2 2 3 2 2 2 1 2 1| Pigmentation | | __________________________________________________________________________| Lymph Node | | Deep Cervical, Inflammation | | Renal, Hemorrhage | | __________________________________________________________________________| Lymph Node, Bronchial | + + + + + + M + + M M M + + M + + M + + M + + + +| Hemorrhage | 3 4 2 3 1 1 2| Infiltration Cellular, Histiocyte | 3 | Pigmentation | 2 | __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 2 | Hyperplasia, Lymphoid | 2 | Hyperplasia, Plasma Cell | 2 2 | Pigmentation | | __________________________________________________________________________| Lymph Node, Mesenteric | + + A + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Lymphoid | | Hemorrhage | 4 3 2 1 1 1 2 3 2 2 3 2 3 3 2| Hyperplasia, Plasma Cell | 3 3 | Infiltration Cellular, Histiocyte | 2 | Pigmentation | 2 3 2 2 | __________________________________________________________________________| Spleen | + + + + A + + + + + + + + + + + + + + + + + + + +| Congestion | 3 | Degeneration, Cystic | 3 2 | Developmental Malformation | 1 | Hematopoietic Cell Proliferation | 2 1 1 3 1 1 | Inflammation | 4 | Necrosis | 3 | __________________________________________________________________________| Thymus | + + M + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 2 2 2 3 2 4 2 2 3 2 3 2 2 1 2 2 1| Congestion | 3 | Cyst | | _____________________________________________________________________________________________________________________| Page 103 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 5| 6| 6| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 1| 2| 2| 6| 9| 1| 3| 3| 2| 8| 3| 2| 3| 4| 2| 2| 4| 2| 3| 2| 3| 5| 5| 5| 5| | 7| 9| 3| 7| 9| 1| 0| 0| 8| 2| 0| 9| 0| 0| 9| 9| 7| 9| 0| 9| 0| 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 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 | 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| 150 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | Hemorrhage | 2 1 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + M + + + + + +| Galactocele | 3 | Hyperplasia | | Inflammation | 2 | Lactation | 1 1 2 3 3 3 3 3 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Subcutaneous Tissue, Abscess | | Tail, Hyperkeratosis | 2 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Compression | 3 3 2 1 2 1 3 3 2 3 | Hemorrhage | | Hydrocephalus | 3 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | 2 | Infiltration Cellular, Lymphocyte | 1 | Inflammation | 1 2 | Epithelium, Hyperplasia | 2 | __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 2 | Hemorrhage | 1 1| Infiltration Cellular, Histiocyte | 2 | Inflammation | 2 3 2 1 2 | Alveolar Epithelium, Hyperplasia | 2 2 1 2 2 2 2 2 3 2 3 2 2 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Foreign Body | 3 2| Hemorrhage | 2 | Infiltration Cellular, Lymphocyte | 2 | Inflammation | 4 2 1 1 2| Goblet Cell, Hyperplasia | 1 | Nasolacrimal Duct, Inflammation | | Olfactory Epithelium, Cytoplasmic | | Alteration | 2 1 1 | Respiratory Epithelium, Hyperplasia | 2 2 | _____________________________________________________________________________________________________________________| Page 104 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 _____________________________________________________________________________________________________________________ | 7| 7| 5| 6| 6| 6| 7| 7| 7| 5| 7| 7| 7| 6| 7| 7| 6| 7| 7| 7| 7| 4| 4| 4| 4| DAY ON TEST | 1| 2| 2| 6| 9| 1| 3| 3| 2| 8| 3| 2| 3| 4| 2| 2| 4| 2| 3| 2| 3| 5| 5| 5| 5| | 7| 9| 3| 7| 9| 1| 0| 0| 8| 2| 0| 9| 0| 0| 9| 9| 7| 9| 0| 9| 0| 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 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 | 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| 150 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| | 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | | Cyst | 4 2 4 | Nephropathy, Chronic | 2 3 2 2 1 1 2 3 2 3 3 3 2 3 2 2 2 3 2 2 2 1 1 1 1| Pigmentation | 2 2 | __________________________________________________________________________| Urinary Bladder | + + + + A + + + + + + + + + + + + + + + + + + + +| Dilatation | | Infiltration Cellular, Lymphocyte | 1 | _____________________________________________________________________________________________________________________| Page 105 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 150 PPM | 8| 8| 8| 9| 9| 9| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + | 56 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + | 55 | Infiltration Cellular, Lipocyte | | 1 3.0| __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + | 55 | Inflammation | | 1 1.0| __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + | 53 | Inflammation | | 1 1.0| __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + | 55 | Ectopic Tissue | 2 | 1 2.0| Hyperplasia | | 1 3.0| Inflammation | | 1 2.0| __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + | 49 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + | 52 | __________________________________________________________________________|____________| Liver | + + + + + + | 56 | Basophilic Focus | 1 1 | 7 1.1| Basophilic Focus, Multiple | 1 1 1 | 22 1.7| Clear Cell Focus | 1 | 2 1.5| Clear Cell Focus, Multiple | | 3 1.7| Congestion | 2 | 7 2.1| Degeneration, Cystic | | 4 1.5| Eosinophilic Focus | | 2 1.5| Eosinophilic Focus, Multiple | | 4 1.8| Fatty Change | | 14 2.0| Infiltration Cellular, Lymphocyte | | 1 1.0| Inflammation | | 1 3.0| Mixed Cell Focus | | 4 2.3| Necrosis | | 2 3.5| __________________________________________________________________________|____________| Mesentery | + + | 10 | Fat, Necrosis | 3 2 | 8 2.6| __________________________________________________________________________|____________| Pancreas | + + + + + + | 56 | Inflammation | | 2 1.5| Acinar Cell, Atrophy | 3 2 2 2 2 | 32 2.1| __________________________________________________________________________|____________| Salivary Glands | + + + + + + | 56 | Abscess | | 1 4.0| __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + | 56 | Hyperplasia | | 3 2.3| Inflammation | | 1 3.0| Ulcer | | 3 3.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + | 55 | __________________________________________________________________________________________________________________________________ * : 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: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 150 PPM | 8| 8| 8| 9| 9| 9| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | Inflammation | | 2 1.5| Ulcer | | 3 2.3| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + | 56 | Cardiomyopathy | 2 1 1 1 2 | 51 1.9| Atrium, Dilatation | | 1 2.0| Atrium, Thrombosis | | 2 3.5| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + | 56 | Congestion | | 1 2.0| Cytoplasmic Alteration | | 1 2.0| Degeneration | | 2 2.5| Hyperplasia | | 3 2.0| Hypertrophy | | 2 2.0| Vacuolization Cytoplasmic | | 16 2.1| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + | 56 | Hyperplasia | | 12 1.8| __________________________________________________________________________|____________| Islets, Pancreatic | | 5 | Hyperplasia | | 1 3.0| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + | 52 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + | 55 | Pars Distalis, Angiectasis | | 4 2.8| Pars Distalis, Cyst | | 3 2.7| Pars Distalis, Hyperplasia | 1 2 2 1 | 18 2.1| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + | 56 | C-Cell, Hyperplasia | | 3 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Tissue NOS | | 1 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + | 56 | Granuloma Sperm | | 1 3.0| Hypospermia | | 29 3.6| __________________________________________________________________________|____________| Preputial Gland | + + + + + + | 56 | Abscess | | 1 3.0| Ectasia | 2 2 2 2 3 2 | 41 2.2| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 107 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 150 PPM | 8| 8| 8| 9| 9| 9| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | Hyperplasia | | 1 3.0| Inflammation | 2 | 16 1.8| __________________________________________________________________________|____________| Prostate | + + + + + + | 56 | Concretion | 1 1 | 10 1.5| Hyperplasia | | 4 1.5| Inflammation | 2 2 2 2 2 | 25 2.2| Vacuolization Cytoplasmic | | 1 2.0| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + | 56 | Depletion Cellular | | 31 3.0| Ectasia | | 1 3.0| Inflammation | | 2 2.5| __________________________________________________________________________|____________| Testes | + + + + + + | 56 | Atrophy | 3 | 8 2.8| Hypospermia | | 1 3.0| Arteriole, Inflammation | | 5 2.4| Bilateral, Atrophy | | 7 3.1| Interstitial Cell, Hyperplasia | 1 | 14 1.4| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + | 56 | Congestion | | 1 2.0| Hyperplasia | | 15 2.1| Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Lymph Node | | 1 | Deep Cervical, Inflammation | | 1 2.0| Renal, Hemorrhage | | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + | 39 | Hemorrhage | 2 1 2 3 | 18 2.0| Infiltration Cellular, Histiocyte | | 1 3.0| Pigmentation | | 3 1.7| __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + | 56 | Hemorrhage | | 3 2.7| Hyperplasia, Lymphoid | | 1 2.0| Hyperplasia, Plasma Cell | | 4 2.3| Pigmentation | | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + | 54 | Hemorrhage | | 7 2.3| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + | 55 | Depletion Lymphoid | | 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 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 150 PPM | 8| 8| 8| 9| 9| 9| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | Hemorrhage | 2 3 1 1 2 3 | 36 2.1| Hyperplasia, Plasma Cell | | 2 3.0| Infiltration Cellular, Histiocyte | | 1 2.0| Pigmentation | | 12 1.8| __________________________________________________________________________|____________| Spleen | + + + + + + | 55 | Congestion | | 1 3.0| Degeneration, Cystic | | 5 2.2| Developmental Malformation | | 1 1.0| Hematopoietic Cell Proliferation | | 13 1.9| Inflammation | | 1 4.0| Necrosis | | 1 3.0| __________________________________________________________________________|____________| Thymus | + + + + + + | 54 | Atrophy | 1 1 1 1 1 | 41 2.0| Congestion | | 2 3.0| Cyst | | 1 2.0| Hemorrhage | 1 | 3 1.3| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + | 53 | Galactocele | | 4 3.0| Hyperplasia | | 1 2.0| Inflammation | | 1 2.0| Lactation | | 16 2.5| __________________________________________________________________________|____________| Skin | + + + + + + | 56 | Subcutaneous Tissue, Abscess | | 1 3.0| Tail, Hyperkeratosis | | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + | 56 | Compression | | 22 2.1| Hemorrhage | | 1 1.0| Hydrocephalus | | 2 2.5| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + | 56 | Foreign Body | | 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 109 NTP Experiment-Test: 05185-03 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOBUTYL NITRITE Date: 04/18/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 09:24:48 __________________________________________________________________________________________________________________________________ | 4| 4| 4| 4| 4| 4| | | DAY ON TEST | 5| 5| 5| 5| 5| 5| | | | 6| 6| 6| 6| 6| 6| | T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| | O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| | A | 150 PPM | 8| 8| 8| 9| 9| 9| | L | | 7| 8| 9| 0| 1| 2| | | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | Infiltration Cellular, Lymphocyte | | 2 1.5| Inflammation | 1 | 4 1.5| Epithelium, Hyperplasia | | 1 2.0| __________________________________________________________________________|____________| Lung | + + + + + + | 56 | Congestion | | 3 2.0| Hemorrhage | 1 | 3 1.0| Infiltration Cellular, Histiocyte | | 1 2.0| Inflammation | | 6 2.0| Alveolar Epithelium, Hyperplasia | 2 1 1 1 2 | 38 1.9| __________________________________________________________________________|____________| Nose | + + + + + + | 56 | Angiectasis | | 2 2.5| Foreign Body | | 2 2.5| Hemorrhage | | 1 2.0| Infiltration Cellular, Lymphocyte | | 2 2.0| Inflammation | 1 | 11 1.7| Goblet Cell, Hyperplasia | | 1 1.0| Nasolacrimal Duct, Inflammation | | 2 2.5| Olfactory Epithelium, Cytoplasmic | | | Alteration | 1 1 | 5 1.2| Respiratory Epithelium, Hyperplasia | | 4 1.8| __________________________________________________________________________|____________| Trachea | + + + + + + | 56 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Zymbal's Gland | | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + | 56 | Congestion | | 1 2.0| Cyst | | 3 3.3| Nephropathy, Chronic | 1 1 1 1 1 1 | 55 2.0| Pigmentation | | 5 2.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + | 55 | Dilatation | | 1 3.0| Infiltration Cellular, Lymphocyte | | 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 110 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------