TDMS Study 05080-02 Pathology Tables
INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) ALLYL GLYCIDYL ETHER NTP Experiment-Test: 05080-02 Report: PEIRPT03 Study Type: CHRONIC Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 Facility: Battelle Northwest Chemical CAS #: 106-92-3 Lock Date: None Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All a Number of animals examined microscopically at site and number of animals with lesion Page 1 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ____________________________________________________________________________________________________________________________________ DISPOSITION SUMMARY Animals Initially In Study 50 50 50 Early Deaths Dead 10 3 6 Moribund 7 5 3 Survivors Terminal Sacrifice 33 41 41 Dead 1 Animals Examined Microscopically 50 50 50 ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM Gallbladder (45) (6) (42) Fibrosis 1 (2%) Inflammation, Chronic 1 (2%) 1 (2%) Intestine Large, Colon (49) (9) (49) Hyperplasia, Lymphoid 2 (4%) Intestine Small, Ileum (47) (7) (47) Hyperplasia, Lymphoid 1 (2%) 3 (6%) Liver (50) (15) (50) Basophilic Focus 1 (7%) Cyst 2 (13%) Focal Cellular Change 1 (2%) Hematopoietic Cell Proliferation 2 (4%) 1 (7%) Hyperplasia, Lymphoid 1 (2%) Inflammation, Chronic, Focal 1 (2%) Inflammation, Chronic, Multifocal 4 (8%) 1 (2%) Leukocytosis 1 (2%) Hepatocyte, Cytomegaly 1 (2%) Mesentery (13) (4) (8) Hyperplasia, Lymphoid 2 (15%) 2 (25%) Inflammation, Chronic 1 (25%) Inflammation, Suppurative 2 (15%) Fat, Necrosis 1 (8%) 1 (25%) 1 (13%) Pancreas (49) (10) (50) Atrophy 3 (6%) 1 (10%) 1 (2%) Cyst 1 (10%) 1 (2%) Hyperplasia, Lymphoid 2 (4%) 1 (10%) Inflammation, Chronic 1 (10%) Duct, Ectasia 1 (2%) Salivary Glands (50) (9) (50) Hyperplasia, Lymphoid 1 (2%) 2 (4%) Inflammation, Chronic, Multifocal 2 (4%) 1 (11%) 1 (2%) Stomach, Forestomach (50) (12) (49) Granuloma 1 (2%) a Number of animals examined microscopically at site and number of animals with lesion Page 2 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - CONT Hyperkeratosis 1 (2%) 1 (8%) 2 (4%) Hyperplasia 1 (2%) 1 (8%) 2 (4%) Hyperplasia, Squamous 1 (2%) Ulcer 2 (4%) Stomach, Glandular (49) (10) (48) Atrophy 1 (2%) 2 (4%) Atrophy, Focal 1 (10%) Cyst 1 (2%) Tooth (3) (1) Peridontal Tissue, Inflammation, Chronic 1 (33%) 1 (100%) Peridontal Tissue, Inflammation, Suppurative 2 (67%) ____________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM Blood Vessel (49) (9) (50) Inflammation, Acute 1 (2%) Heart (50) (9) (50) Fibrosis, Focal 1 (2%) Inflammation, Chronic 1 (2%) Atrium, Inflammation, Focal, Suppurative 1 (2%) Myocardium, Inflammation, Chronic 1 (11%) ____________________________________________________________________________________________________________________________________ ENDOCRINE SYSTEM Adrenal Gland (47) (9) (48) Subcapsular, Hyperplasia 42 (89%) 8 (89%) 46 (96%) Adrenal Gland, Cortex (47) (8) (48) Accessory Adrenal Cortical Nodule 2 (4%) 1 (2%) Cyst 1 (2%) Degeneration 37 (79%) 5 (63%) 40 (83%) Fibrosis 36 (77%) 5 (63%) 40 (83%) Hematopoietic Cell Proliferation 1 (2%) Adrenal Gland, Medulla (47) (7) (47) Cyst 1 (2%) Pituitary Gland (44) (17) (45) Pars Distalis, Cyst 1 (2%) Pars Distalis, Hyperplasia 15 (34%) 6 (35%) 9 (20%) Thyroid Gland (50) (10) (50) C-Cell, Hyperplasia 1 (2%) 1 (2%) Follicle, Degeneration 1 (2%) Follicular Cell, Hyperplasia 3 (6%) 1 (10%) 1 (2%) ____________________________________________________________________________________________________________________________________ a Number of animals examined microscopically at site and number of animals with lesion Page 3 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ____________________________________________________________________________________________________________________________________ GENERAL BODY SYSTEM Tissue NOS (5) (1) Abscess 1 (20%) ____________________________________________________________________________________________________________________________________ GENITAL SYSTEM Ovary (49) (19) (50) Atrophy 1 (2%) Cyst 14 (29%) 10 (53%) 18 (36%) Inflammation, Chronic 1 (2%) Inflammation, Suppurative 4 (8%) 3 (16%) 2 (4%) Capsule, Fibrosis 1 (2%) Capsule, Inflammation, Chronic 1 (2%) Capsule, Mineralization 1 (2%) Uterus (50) (24) (50) Endometrium, Hyperplasia, Cystic 36 (72%) 22 (92%) 29 (58%) Endometrium, Inflammation, Acute 1 (2%) Endometrium, Inflammation, Suppurative 3 (6%) 2 (8%) 1 (2%) Endometrium, Necrosis 1 (2%) ____________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM Blood (49) (9) (50) Leukocytosis 1 (2%) Bone Marrow (50) (35) (48) Hyperplasia 1 (2%) Myelofibrosis 36 (72%) 32 (91%) 45 (94%) Lymph Node (48) (11) (48) Mesenteric, Hyperplasia, Lymphoid 1 (2%) Renal, Hyperplasia, Lymphoid 1 (2%) Renal, Inflammation, Suppurative 1 (2%) Lymph Node, Bronchial (38) (7) (37) Hyperplasia, Lymphoid 1 (3%) 5 (14%) Lymph Node, Mandibular (42) (6) (40) Cyst 1 (2%) Hyperplasia, Lymphoid 8 (19%) 8 (20%) Infiltration Cellular, Histiocyte 1 (17%) Inflammation, Suppurative 1 (2%) Pigmentation, Hemosiderin 1 (2%) Spleen (50) (18) (50) Atrophy 1 (2%) Hematopoietic Cell Proliferation 6 (12%) 3 (17%) 4 (8%) Hyperplasia, Lymphoid 8 (16%) 1 (6%) 10 (20%) Thymus (34) (8) (42) Atrophy 1 (3%) a Number of animals examined microscopically at site and number of animals with lesion Page 4 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ____________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - CONT Hyperplasia, Lymphoid 1 (3%) 1 (2%) Inflammation, Necrotizing 1 (3%) Inflammation, Suppurative 1 (2%) Mediastinum, Inflammation, Suppurative 1 (3%) ____________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM Skin (50) (18) (50) Inflammation, Suppurative 1 (2%) Hair Follicle, Atrophy 5 (10%) 8 (44%) 2 (4%) ____________________________________________________________________________________________________________________________________ MUSCULOSKELETAL SYSTEM Bone (50) (9) (50) Cranium, Fibrous Osteodystrophy 1 (2%) Skeletal Muscle (1) (1) (2) Back, Inflammation, Chronic 1 (100%) ____________________________________________________________________________________________________________________________________ NERVOUS SYSTEM Brain (50) (9) (50) Hypothalamus, Atrophy 5 (10%) 1 (2%) Lateral Ventricle, Dilatation 1 (2%) Thalamus, Mineralization 5 (10%) 1 (11%) 4 (8%) ____________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM Larynx (49) (9) (50) Epithelium, Hyperplasia, Focal 1 (2%) Lung (50) (9) (50) Hyperplasia, Lymphoid 3 (6%) 5 (10%) Infiltration Cellular, Diffuse, Histiocyte 1 (2%) Inflammation, Acute, Focal 1 (2%) Inflammation, Chronic, Multifocal 17 (34%) 2 (22%) 24 (48%) Leukocytosis 2 (4%) 1 (11%) 1 (2%) Alveolus, Granuloma 1 (2%) Bronchiole, Hyperplasia 1 (2%) Nose (49) (49) (50) Hemorrhage 1 (2%) Thrombosis 1 (2%) Glands, Hyperplasia 32 (65%) 46 (94%) 49 (98%) Glands, Inflammation 1 (2%) Glands, Regeneration 1 (2%) a Number of animals examined microscopically at site and number of animals with lesion Page 5 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE CONTROL 5 PPM 10 PPM FEMALE FEMALE FEMALE ____________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - CONT Mucosa, Inflammation 1 (2%) Mucosa, Inflammation, Acute 1 (2%) Mucosa, Inflammation, Suppurative 8 (16%) 48 (98%) 49 (98%) Olfactory Epithelium, Metaplasia 7 (14%) 48 (98%) 49 (98%) Respiratory Epithelium, Dysplasia 3 (6%) Respiratory Epithelium, Hyperplasia 39 (80%) 48 (96%) Respiratory Epithelium, Hyperplasia, Basal Cell 2 (4%) 7 (14%) Respiratory Epithelium, Metaplasia, Squamous 9 (18%) 12 (24%) Respiratory Epithelium, Regeneration 5 (10%) 47 (96%) 46 (92%) Submucosa, Angiectasis, Focal 2 (4%) Trachea (50) (9) (49) Metaplasia, Focal, Squamous 1 (2%) Glands, Inflammation, Suppurative 1 (2%) Mediastinum, Inflammation, Suppurative 1 (2%) ____________________________________________________________________________________________________________________________________ SPECIAL SENSES SYSTEM Ear (1) (2) Inflammation, Necrotizing 1 (100%) ____________________________________________________________________________________________________________________________________ URINARY SYSTEM Kidney (50) (10) (49) Hyperplasia, Lymphoid 4 (8%) 1 (2%) Inflammation, Chronic 10 (20%) 3 (30%) 18 (37%) Inflammation, Suppurative 2 (4%) 1 (10%) Metaplasia, Focal, Osseous 2 (4%) Regeneration 1 (2%) Cortex, Cyst 1 (10%) Cortex, Infarct 1 (2%) Renal Tubule, Necrosis 1 (10%) Renal Tubule, Regeneration 5 (10%) 5 (10%) Renal Tubule, Regeneration, Focal 1 (2%) Urinary Bladder (47) (9) (47) Hyperplasia, Lymphoid 3 (6%) 4 (9%) Inflammation, Chronic 10 (21%) 3 (33%) 6 (13%) a Number of animals examined microscopically at site and number of animals with lesion Page 6 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE CONTROL 5 PPM 10 PPM MALE MALE MALE ____________________________________________________________________________________________________________________________________ DISPOSITION SUMMARY Animals Initially In Study 50 50 50 Early Deaths Dead 7 2 1 Moribund 5 9 3 Survivors Terminal Sacrifice 37 39 46 Moribund 1 Animals Examined Microscopically 50 50 50 ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM Intestine Large, Cecum (45) (5) (48) Inflammation, Suppurative 1 (2%) Intestine Large, Colon (47) (10) (49) Inflammation, Suppurative 1 (2%) Parasite Metazoan 1 (2%) Intestine Large, Rectum (47) (10) (47) Inflammation, Suppurative 2 (4%) Parasite Metazoan 1 (2%) Intestine Small (45) (13) (49) Lymphoid Tissue, Hyperplasia 1 (2%) Intestine Small, Ileum (45) (11) (49) Hyperplasia, Lymphoid 1 (2%) Submucosa, Amyloid Deposition 1 (2%) Liver (49) (19) (49) Basophilic Focus 1 (5%) Cyst, Multiple 1 (5%) Developmental Malformation 1 (2%) Focal Cellular Change 2 (4%) 2 (4%) Inflammation, Acute, Focal 1 (2%) Inflammation, Chronic, Multifocal 1 (5%) 2 (4%) Necrosis, Coagulative 1 (2%) 1 (2%) Proliferation Connective Tissue 1 (5%) Bile Duct, Cyst 1 (2%) Centrilobular, Fatty Change, Multifocal 1 (2%) Serosa, Fibrosis 1 (2%) Mesentery (2) (1) Inflammation, Chronic 1 (50%) Pancreas (49) (12) (49) Cyst 1 (8%) Fibrosis, Diffuse 1 (2%) Salivary Glands (49) (10) (49) Inflammation, Chronic 2 (4%) 4 (8%) Stomach, Forestomach (50) (15) (49) a Number of animals examined microscopically at site and number of animals with lesion Page 7 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE CONTROL 5 PPM 10 PPM MALE MALE MALE ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - CONT Hyperkeratosis 3 (6%) 1 (7%) 1 (2%) Hyperplasia, Squamous 1 (7%) Mineralization, Focal 1 (2%) Ulcer 2 (13%) 2 (4%) Stomach, Glandular (50) (15) (49) Atrophy 1 (2%) Atrophy, Diffuse 1 (2%) Cyst 1 (2%) Dysplasia, Focal 1 (2%) Necrosis, Multifocal 1 (2%) Ulcer, Multiple 1 (7%) Tooth (3) (3) (3) Abscess 3 (100%) Developmental Malformation 2 (67%) Inflammation, Chronic, Focal 1 (33%) Peridontal Tissue, Inflammation, Chronic 3 (100%) ____________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM Heart (50) (11) (50) Atrium, Thrombosis 1 (2%) Coronary Artery, Inflammation, Chronic, Focal 1 (2%) Myocardium, Inflammation, Acute, Focal 1 (2%) Myocardium, Inflammation, Chronic 2 (4%) Valve, Inflammation, Chronic, Focal 1 (2%) Valve, Pigmentation, Focal 1 (2%) ____________________________________________________________________________________________________________________________________ ENDOCRINE SYSTEM Adrenal Gland (49) (11) (50) Subcapsular, Hyperplasia 46 (94%) 10 (91%) 49 (98%) Adrenal Gland, Cortex (49) (11) (49) Accessory Adrenal Cortical Nodule 1 (2%) Degeneration, Focal 2 (4%) Hyperplasia, Focal 2 (4%) Hypertrophy, Focal 1 (2%) 1 (2%) Pituitary Gland (44) (9) (49) Cyst 1 (2%) Thyroid Gland (50) (10) (49) Follicular Cell, Hyperplasia 4 (8%) 2 (4%) ____________________________________________________________________________________________________________________________________ a Number of animals examined microscopically at site and number of animals with lesion Page 8 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE CONTROL 5 PPM 10 PPM MALE MALE MALE ____________________________________________________________________________________________________________________________________ GENERAL BODY SYSTEM None ____________________________________________________________________________________________________________________________________ GENITAL SYSTEM Penis (1) (2) Inflammation, Necrotizing 1 (100%) 1 (50%) Preputial Gland (8) (9) (8) Cyst 2 (25%) 4 (44%) 5 (63%) Cyst, Multiple 1 (13%) Inflammation, Chronic 1 (13%) 1 (11%) Inflammation, Suppurative 5 (63%) 3 (33%) Prostate (45) (11) (44) Inflammation, Suppurative 2 (4%) Seminal Vesicle (47) (10) (44) Dilatation 1 (2%) 1 (10%) Hemorrhage, Diffuse 1 (2%) Inflammation, Suppurative 2 (4%) Testes (49) (11) (49) Mineralization 2 (4%) Bilateral, Atrophy 2 (4%) Interstitial Cell, Hyperplasia 2 (4%) ____________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM Lymph Node (43) (15) (45) Mesenteric, Hemorrhage, Acute 1 (7%) Mesenteric, Hyperplasia 1 (2%) Lymph Node, Bronchial (29) (7) (29) Edema 1 (3%) Hyperplasia, Lymphoid 1 (3%) 1 (3%) Lymph Node, Mandibular (34) (9) (33) Hyperplasia, Lymphoid 1 (3%) 1 (11%) 1 (3%) Infiltration Cellular, Histiocyte 7 (21%) 1 (3%) Spleen (49) (16) (49) Atrophy 1 (6%) 2 (4%) Hematopoietic Cell Proliferation 3 (6%) 2 (13%) 2 (4%) Hyperplasia, Lymphoid 3 (6%) Capsule, Fibrosis 1 (2%) Thymus (30) (4) (31) Cyst 3 (10%) Mediastinum, Inflammation, Chronic 1 (3%) ____________________________________________________________________________________________________________________________________ a Number of animals examined microscopically at site and number of animals with lesion Page 9 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE CONTROL 5 PPM 10 PPM MALE MALE MALE ____________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM Skin (50) (17) (50) Inflammation, Chronic, Focal 1 (2%) Dermis, Abscess 1 (2%) Epidermis, Necrosis, Acute 1 (2%) Hair Follicle, Atrophy 3 (6%) 5 (29%) Prepuce, Inflammation, Suppurative 3 (6%) Prepuce, Ulcer 3 (18%) Sebaceous Gland, Hyperplasia 1 (6%) Subcutaneous Tissue, Edema 1 (6%) Subcutaneous Tissue, Hemorrhage, Acute 1 (2%) Subcutaneous Tissue, Inflammation, Acute 1 (6%) Subcutaneous Tissue, Inflammation, Chronic 1 (2%) 1 (6%) Subcutaneous Tissue, Inflammation, Suppurative 3 (6%) ____________________________________________________________________________________________________________________________________ MUSCULOSKELETAL SYSTEM None ____________________________________________________________________________________________________________________________________ NERVOUS SYSTEM Brain (50) (11) (50) Cerebrum, Mineralization 1 (2%) Hypothalamus, Atrophy 1 (2%) Thalamus, Atrophy 1 (2%) Thalamus, Hemorrhage, Acute, Focal 1 (2%) Thalamus, Mineralization 29 (58%) 3 (27%) 8 (16%) ____________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM Lung (50) (19) (50) Congestion, Diffuse 1 (2%) Granuloma 1 (2%) Infiltration Cellular, Histiocyte 2 (4%) 1 (5%) 2 (4%) Inflammation, Chronic, Multifocal 17 (34%) 3 (16%) 21 (42%) Inflammation, Suppurative 1 (2%) Alveolus, Adenomatosis, Focal 2 (4%) 1 (5%) Alveolus, Hyperplasia, Focal 2 (4%) Glands, Ectasia 8 (16%) Glands, Inflammation, Suppurative 1 (2%) Interstitium, Inflammation, Acute 3 (6%) Nose (50) (50) (50) Glands, Dilatation 1 (2%) a Number of animals examined microscopically at site and number of animals with lesion Page 10 NTP Experiment-Test: 05080-02 INCIDENCE RATES OF NONNEOPLASTIC LESIONS BY ANATOMIC SITE (a) Report: PEIRPT03 Study Type: CHRONIC ALLYL GLYCIDYL ETHER Date: 09/10/94 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 20:33:17 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE CONTROL 5 PPM 10 PPM MALE MALE MALE ____________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - CONT Glands, Hyperplasia 8 (16%) 47 (94%) 48 (96%) Mucosa, Inflammation, Suppurative 2 (4%) 48 (96%) 47 (94%) Olfactory Epithelium, Metaplasia 4 (8%) 49 (98%) 50 (100%) Respiratory Epithelium, Dysplasia 1 (2%) 3 (6%) Respiratory Epithelium, Dysplasia, Focal 1 (2%) Respiratory Epithelium, Hyperplasia 25 (50%) 40 (80%) Respiratory Epithelium, Hyperplasia, Basal Cell 1 (2%) 7 (14%) Respiratory Epithelium, Metaplasia, Squamous 4 (8%) 8 (16%) Respiratory Epithelium, Regeneration 46 (92%) 46 (92%) Submucosa, Angiectasis 1 (2%) 2 (4%) 5 (10%) Trachea (50) (10) (48) Epithelium, Metaplasia, Squamous 1 (2%) Glands, Dilatation 41 (82%) 27 (56%) Mediastinum, Hyperplasia, Lymphoid 1 (2%) ____________________________________________________________________________________________________________________________________ SPECIAL SENSES SYSTEM None ____________________________________________________________________________________________________________________________________ URINARY SYSTEM Kidney (49) (15) (49) Inflammation, Chronic 39 (80%) 4 (27%) 30 (61%) Inflammation, Suppurative 4 (8%) 1 (7%) Capsule, Fibrosis 1 (7%) Cortex, Cyst 2 (13%) Cortex, Metaplasia, Osseous 1 (2%) Medulla, Cyst 1 (7%) Renal Tubule, Dilatation, Diffuse 1 (2%) Renal Tubule, Regeneration 32 (65%) 3 (20%) 32 (65%) Renal Tubule, Regeneration, Multifocal 2 (4%) Urinary Bladder (49) (11) (49) Calculus Micro Observation Only 1 (9%) Inflammation, Chronic 2 (4%) Inflammation, Chronic, Multifocal 2 (4%) Inflammation, Suppurative 4 (8%) 1 (9%) Transitional Epithelium, Hyperplasia 1 (9%) Transitional Epithelium, Necrosis 1 (2%) a Number of animals examined microscopically at site and number of animals with lesion Page 11 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------ --multipart-boundary Content-type: text/plain Range: bytes 75352-75352/75352 --multipart-boundary--