TDMS Study 05103-04 Pathology Tables
INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL NTP Experiment-Test: 05103-04 Report: PEIRPT05 Study Type: CHRONIC Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 Facility: Southern Research Institute Chemical CAS #: 3296-90-0 Lock Date: 02/12/92 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: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ DISPOSITION SUMMARY Animals Initially in Study 60 60 60 60 Scheduled Sacrifice 8 10 9 10 Early Deaths Moribund Sacrifice 9 14 14 29 Natural Death 6 6 11 10 Survivors Terminal Sacrifice 37 30 26 11 Animals Examined Microscopically 60 60 60 60 ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM Gallbladder (56) (57) (55) (55) Sarcoma, Metastatic, Mesentery 1 (2%) Intestine Large, Colon (60) (60) (58) (59) Hemangioma 1 (2%) Intestine Large, Rectum (58) (60) (60) (60) Histiocytic Sarcoma 1 (2%) Intestine Large, Cecum (60) (60) (58) (60) Hemangioma 1 (2%) Intestine Small, Jejunum (57) (59) (58) (57) Liver (59) (60) (59) (59) Hepatocellular Carcinoma 4 (7%) 8 (13%) 5 (8%) 1 (2%) Hepatocellular Carcinoma, Multiple 1 (2%) 2 (3%) Hepatocellular Adenoma 13 (22%) 9 (15%) 4 (7%) 14 (24%) Hepatocellular Adenoma, Multiple 3 (5%) 3 (5%) 2 (3%) 3 (5%) Histiocytic Sarcoma 2 (3%) 2 (3%) 1 (2%) Sarcoma, Metastatic, Mesentery 1 (2%) Mesentery (4) (7) (8) (8) Sarcoma 1 (13%) Yolk Sac Carcinoma, Metastatic, Ovary 1 (13%) Pancreas (59) (60) (58) (58) Sarcoma, Metastatic, Mesentery 1 (2%) Sarcoma Stromal, Metastatic, Uterus 1 (2%) Salivary Glands (60) (60) (60) (60) Stomach, Forestomach (59) (60) (60) (59) Squamous Cell Papilloma 1 (2%) 5 (8%) 4 (7%) Stomach, Glandular (59) (60) (58) (59) Sarcoma Stromal, Metastatic, Uterus 1 (2%) Tongue (1) Squamous Cell Carcinoma 1 (100%) ____________________________________________________________________________________________________________________________________ Page 2 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM Heart (60) (60) (60) (60) ____________________________________________________________________________________________________________________________________ ENDOCRINE SYSTEM Adrenal Cortex (59) (60) (60) (59) Sarcoma, Metastatic, Skin 1 (2%) Capsule, Carcinoma 1 (2%) Adrenal Medulla (59) (60) (60) (59) Pheochromocytoma Benign 1 (2%) Islets, Pancreatic (59) (60) (58) (59) Adenoma 1 (2%) 3 (5%) 2 (3%) 2 (3%) Pituitary Gland (58) (58) (57) (56) Pars Distalis, Adenoma 4 (7%) 8 (14%) 3 (5%) 5 (9%) Pars Distalis, Carcinoma 1 (2%) Pars Intermedia, Adenoma 1 (2%) Thyroid Gland (59) (60) (60) (59) Follicular Cell, Adenoma 3 (5%) 1 (2%) 3 (5%) ____________________________________________________________________________________________________________________________________ GENERAL BODY SYSTEM Tissue NOS (2) ____________________________________________________________________________________________________________________________________ GENITAL SYSTEM Ovary (59) (59) (60) (57) Adenoma 1 (2%) 1 (2%) Carcinoma 1 (2%) Granulosa Cell Tumor Benign 1 (2%) 1 (2%) Luteoma 2 (3%) Yolk Sac Carcinoma 1 (2%) Bilateral, Adenoma 1 (2%) Uterus (60) (60) (60) (60) Carcinoma 1 (2%) 2 (3%) 2 (3%) Deciduoma Benign 1 (2%) Hemangioma 1 (2%) Hemangiosarcoma 1 (2%) Histiocytic Sarcoma 1 (2%) 1 (2%) 1 (2%) Polyp Adenomatous 1 (2%) Polyp Stromal 3 (5%) 1 (2%) 1 (2%) Sarcoma Stromal 1 (2%) 2 (3%) Vagina (1) Squamous Cell Papilloma 1 (100%) ____________________________________________________________________________________________________________________________________ Page 3 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM Bone Marrow (60) (60) (60) (60) Hemangioma 1 (2%) Hemangiosarcoma 1 (2%) Histiocytic Sarcoma 1 (2%) 1 (2%) Lymph Node (9) (12) (6) (9) Mediastinal, Sarcoma, Metastatic, Skin 1 (17%) Renal, Histiocytic Sarcoma 1 (8%) Renal, Sarcoma, Metastatic, Skin 1 (11%) Lymph Node, Mandibular (56) (56) (59) (56) Carcinoma, Metastatic, Harderian Gland 1 (2%) Histiocytic Sarcoma 1 (2%) Lymph Node, Mesenteric (57) (58) (55) (58) Histiocytic Sarcoma 3 (5%) 2 (4%) 1 (2%) Sarcoma Stromal, Metastatic, Uterus 1 (2%) Spleen (59) (60) (59) (60) Hemangioma 1 (2%) Histiocytic Sarcoma 1 (2%) Thymus (54) (57) (55) (52) Histiocytic Sarcoma 1 (2%) Sarcoma, Metastatic, Mesentery 1 (2%) ____________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM Mammary Gland (59) (60) (59) (59) Adenoacanthoma 1 (2%) Carcinoma 1 (2%) 2 (3%) Carcinoma, Multiple 1 (2%) Skin (59) (60) (60) (60) Squamous Cell Papilloma 1 (2%) 1 (2%) Sebaceous Gland, Carcinoma 1 (2%) Subcutaneous Tissue, Fibrosarcoma 1 (2%) Subcutaneous Tissue, Fibrous Histiocytoma 1 (2%) Subcutaneous Tissue, Hemangioma 1 (2%) Subcutaneous Tissue, Hemangiosarcoma 2 (3%) Subcutaneous Tissue, Sarcoma 4 (7%) 11 (18%) Subcutaneous Tissue, Sarcoma, Multiple 1 (2%) Subcutaneous Tissue, Schwannoma Malignant 1 (2%) ____________________________________________________________________________________________________________________________________ Page 4 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ MUSCULOSKELETAL SYSTEM Bone (60) (60) (60) (60) Osteosarcoma 1 (2%) 1 (2%) 1 (2%) ____________________________________________________________________________________________________________________________________ NERVOUS SYSTEM Peripheral Nerve (1) (1) (1) (1) ____________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM Lung (60) (60) (60) (60) Alveolar/Bronchiolar Adenoma 3 (5%) 3 (5%) 7 (12%) 17 (28%) Alveolar/Bronchiolar Adenoma, Multiple 1 (2%) 2 (3%) 2 (3%) Alveolar/Bronchiolar Carcinoma 3 (5%) 2 (3%) 5 (8%) 4 (7%) Alveolar/Bronchiolar Carcinoma, Multiple 1 (2%) 1 (2%) Carcinoma, Metastatic, Harderian Gland 1 (2%) 2 (3%) 3 (5%) 1 (2%) Carcinoma, Metastatic, Mammary Gland 1 (2%) Carcinoma, Metastatic, Adrenal Cortex 1 (2%) Hepatocellular Carcinoma, Metastatic, Liver 2 (3%) 2 (3%) 1 (2%) Histiocytic Sarcoma 2 (3%) 2 (3%) 1 (2%) Sarcoma, Metastatic, Skin 1 (2%) 1 (2%) ____________________________________________________________________________________________________________________________________ SPECIAL SENSES SYSTEM Harderian Gland (22) (32) (31) (40) Adenoma 3 (14%) 7 (22%) 8 (26%) 18 (45%) Carcinoma 1 (5%) 6 (19%) 5 (16%) 7 (18%) Bilateral, Adenoma 1 (3%) Zymbal's Gland (1) Carcinoma 1 (100%) ____________________________________________________________________________________________________________________________________ URINARY SYSTEM Kidney (59) (60) (60) (59) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Urinary Bladder (59) (60) (59) (60) ____________________________________________________________________________________________________________________________________ SYSTEMIC LESIONS Multiple Organs *(60) *(60) *(60) *(60) Histiocytic Sarcoma 1 (2%) 4 (7%) 2 (3%) 1 (2%) * Number of animals with any tissue examined microscopically Page 5 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ SYSTEMIC LESIONS - cont Multiple Organs *(60) *(60) *(60) *(60) Lymphoma Malignant Lymphocytic 2 (3%) 1 (2%) 1 (2%) Lymphoma Malignant Mixed 3 (5%) 7 (12%) 7 (12%) 3 (5%) Lymphoma Malignant Undifferentiated Cell 3 (5%) 1 (2%) ____________________________________________________________________________________________________________________________________ Page 6 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE FEMALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ TUMOR SUMMARY Total Animals with Primary Neoplasms (b) 38 43 46 49 Total Primary Neoplasms 54 80 78 120 Total Animals with Benign Neoplasms 28 30 31 41 Total Benign Neoplasms 37 43 41 72 Total Animals with Malignant Neoplasms 17 32 31 36 Total Malignant Neoplasms 17 37 37 48 Total Animals with Metastatic Neoplasms 3 6 7 4 Total Metastatic Neoplasm 4 8 8 9 Total Animals with Malignant Neoplasms Uncertain Primary Site Total Animals with Neoplasms Uncertain- Benign or Malignant Total Uncertain Neoplasms ____________________________________________________________________________________________________________________________________ a Number of animals examined microscopically at site and number of animals with lesion b Primary tumors: all tumors except metastatic tumors Page 7 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ DISPOSITION SUMMARY Animals Initially in Study 60 60 60 60 Scheduled Sacrifice 10 9 10 10 Early Deaths Natural Death 5 3 4 5 Moribund Sacrifice 3 12 11 13 Accidently Killed 1 Survivors Terminal Sacrifice 42 36 35 30 Missing 1 Animals Examined Microscopically 60 60 60 59 ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM Gallbladder (58) (53) (59) (52) Fibrous Histiocytoma 1 (2%) Hepatoblastoma, Metastatic, Liver 1 (2%) Intestine Large, Cecum (59) (58) (58) (58) Intestine Small, Duodenum (59) (59) (59) (56) Intestine Small, Jejunum (59) (58) (59) (58) Carcinoma 2 (3%) Intestine Small, Ileum (58) (57) (57) (58) Carcinoma 1 (2%) Liver (59) (60) (59) (59) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Cholangiocarcinoma 1 (2%) Hemangioma 1 (2%) 1 (2%) Hemangiosarcoma 1 (2%) 2 (3%) 2 (3%) Hepatoblastoma 1 (2%) Hepatocellular Carcinoma 11 (19%) 15 (25%) 14 (24%) 9 (15%) Hepatocellular Carcinoma, Multiple 2 (3%) 1 (2%) Hepatocellular Adenoma 16 (27%) 19 (32%) 12 (20%) 12 (20%) Hepatocellular Adenoma, Multiple 6 (10%) 5 (8%) 8 (14%) 9 (15%) Histiocytic Sarcoma 2 (3%) Squamous Cell Carcinoma, Metastatic, Stomach, Forestomach 2 (3%) Mesentery (3) (2) (1) (4) Hemangiosarcoma 1 (25%) Hepatoblastoma, Metastatic, Liver 1 (50%) Histiocytic Sarcoma 1 (50%) Squamous Cell Carcinoma, Metastatic, Stomach, Forestomach 1 (25%) Page 8 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont Pancreas (59) (60) (59) (59) Histiocytic Sarcoma 1 (2%) Squamous Cell Carcinoma, Metastatic, Stomach, Forestomach 1 (2%) Pharynx (1) Squamous Cell Papilloma 1 (100%) Stomach, Forestomach (59) (60) (60) (58) Squamous Cell Carcinoma 1 (2%) 2 (3%) Squamous Cell Papilloma 3 (5%) 2 (3%) 3 (5%) Stomach, Glandular (59) (60) (59) (58) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) ____________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM Heart (60) (60) (60) (59) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Carcinoma, Metastatic, Harderian Gland 1 (2%) Hepatocellular Carcinoma, Metastatic, Liver 1 (2%) ____________________________________________________________________________________________________________________________________ ENDOCRINE SYSTEM Adrenal Cortex (58) (60) (60) (59) Adenoma 1 (2%) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Histiocytic Sarcoma 1 (2%) Capsule, Adenoma 1 (2%) Adrenal Medulla (59) (59) (60) (59) Pheochromocytoma Malignant 1 (2%) Pheochromocytoma Benign 1 (2%) Islets, Pancreatic (59) (59) (59) (59) Adenoma 1 (2%) 1 (2%) 1 (2%) 2 (3%) Pituitary Gland (57) (54) (59) (54) Pars Distalis, Carcinoma 1 (2%) Thyroid Gland (59) (60) (59) (59) Follicular Cell, Adenoma 3 (5%) 4 (7%) Follicular Cell, Carcinoma 1 (2%) ____________________________________________________________________________________________________________________________________ Page 9 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ GENERAL BODY SYSTEM None ____________________________________________________________________________________________________________________________________ GENITAL SYSTEM Epididymis (59) (60) (60) (59) Histiocytic Sarcoma 1 (2%) Preputial Gland (58) (58) (59) (58) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Seminal Vesicle (59) (60) (60) (59) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Testes (59) (60) (60) (59) Hemangioma 1 (2%) Interstitial Cell, Adenoma 1 (2%) ____________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM Bone Marrow (59) (60) (60) (59) Hemangiosarcoma 2 (3%) Histiocytic Sarcoma 1 (2%) Lymph Node (3) (3) (5) (7) Mediastinal, Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (20%) Lymph Node, Mandibular (56) (58) (59) (55) Lymph Node, Mesenteric (58) (58) (59) (58) Histiocytic Sarcoma 2 (3%) Spleen (59) (60) (59) (59) Hemangiosarcoma 3 (5%) Histiocytic Sarcoma 1 (2%) Thymus (53) (57) (50) (52) ____________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM Skin (60) (60) (60) (59) Mast Cell Tumor Benign 1 (2%) Squamous Cell Papilloma 1 (2%) Sebaceous Gland, Adenoma 1 (2%) Subcutaneous Tissue, Hemangiosarcoma 1 (2%) Subcutaneous Tissue, Sarcoma 2 (3%) ____________________________________________________________________________________________________________________________________ Page 10 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ MUSCULOSKELETAL SYSTEM Skeletal Muscle (1) (1) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (100%) Hepatocellular Carcinoma, Metastatic, Liver 1 (100%) ____________________________________________________________________________________________________________________________________ NERVOUS SYSTEM Brain (60) (60) (60) (59) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Hepatocellular Carcinoma, Metastatic, Liver 1 (2%) ____________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM Lung (60) (60) (60) (59) Alveolar/Bronchiolar Adenoma 14 (23%) 5 (8%) 12 (20%) 11 (19%) Alveolar/Bronchiolar Adenoma, Multiple 4 (7%) 10 (17%) Alveolar/Bronchiolar Carcinoma 3 (5%) 6 (10%) 8 (13%) 9 (15%) Alveolar/Bronchiolar Carcinoma, Multiple 1 (2%) 3 (5%) Carcinoma, Metastatic, Harderian Gland 1 (2%) 1 (2%) Hepatoblastoma, Metastatic, Liver 1 (2%) Hepatocellular Carcinoma, Metastatic, Liver 2 (3%) 5 (8%) 3 (5%) 3 (5%) Histiocytic Sarcoma 1 (2%) Squamous Cell Carcinoma, Metastatic, Stomach, Forestomach 1 (2%) Nose (59) (60) (60) (59) ____________________________________________________________________________________________________________________________________ SPECIAL SENSES SYSTEM Harderian Gland (26) (31) (33) (36) Adenoma 3 (12%) 6 (19%) 12 (36%) 12 (33%) Carcinoma 1 (4%) 1 (3%) 4 (12%) 3 (8%) Bilateral, Adenoma 1 (3%) 9 (25%) Bilateral, Carcinoma 1 (3%) Zymbal's Gland (1) Carcinoma 1 (100%) ____________________________________________________________________________________________________________________________________ Page 11 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ URINARY SYSTEM Kidney (59) (60) (60) (59) Alveolar/Bronchiolar Carcinoma, Metastatic, Lung 1 (2%) Carcinoma, Metastatic, Harderian Gland 1 (2%) Hemangiosarcoma 1 (2%) Histiocytic Sarcoma 1 (2%) Squamous Cell Carcinoma, Metastatic, Stomach, Forestomach 1 (2%) Renal Tubule, Adenoma 3 (5%) 2 (3%) Urinary Bladder (59) (60) (59) (59) Hemangiosarcoma 1 (2%) 1 (2%) ____________________________________________________________________________________________________________________________________ SYSTEMIC LESIONS Multiple Organs *(60) *(60) *(60) *(59) Histiocytic Sarcoma 2 (3%) Lymphoma Malignant Lymphocytic 1 (2%) Lymphoma Malignant Mixed 2 (3%) 2 (3%) 6 (10%) 3 (5%) Lymphoma Malignant Undifferentiated Cell 1 (2%) ____________________________________________________________________________________________________________________________________ * Number of animals with any tissue examined microscopically Page 12 NTP Experiment-Test: 05103-04 INCIDENCE RATES OF NEOPLASMS BY ANATOMIC SITE (SYSTEMIC LESIONS ABRIDGED) (a) Report: PEIRPT05 Study Type: CHRONIC 2,2-BIS(BROMOMETHYL)-1,3-PROPANEDIOL Date: 05/19/95 Route: DOSED FEED Time: 19:06:50 ____________________________________________________________________________________________________________________________________ B6C3F1 MICE MALE UNTREATD 0.0312% 0.0625% 0.125% CONTROL ____________________________________________________________________________________________________________________________________ TUMOR SUMMARY Total Animals with Primary Neoplasms (b) 43 47 51 53 Total Primary Neoplasms 63 90 92 116 Total Animals with Benign Neoplasms 36 33 44 49 Total Benign Neoplasms 42 47 56 77 Total Animals with Malignant Neoplasms 17 32 24 33 Total Malignant Neoplasms 21 43 36 39 Total Animals with Metastatic Neoplasms 3 6 4 7 Total Metastatic Neoplasm 5 11 4 19 Total Animals with Malignant Neoplasms Uncertain Primary Site Total Animals with Neoplasms Uncertain- Benign or Malignant Total Uncertain Neoplasms ____________________________________________________________________________________________________________________________________ a Number of animals examined microscopically at site and number of animals with lesion b Primary tumors: all tumors except metastatic tumors Page 13 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------