TDMS Study 92012-06 Pathology Tables
NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 27 WEEK SSAC/FINAL#1 MICE Facility: Southern Research Institute Chemical CAS #: 693-98-1 Lock Date: 10/16/01 Cage Range: All Reasons For Removal: 25017 Scheduled Sacrifice Removal Date Range: All Treatment Groups: Include All Page 1 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| | A | 0PPM | 5| 5| 5| 5| 5| 9| 9| 9| 9| 9| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 1 | 1 1.0| Infiltration Cellular, Mixed Cell | 1 1 1 1 1 1 | 6 1.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 2 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| | A | 0PPM | 5| 5| 5| 5| 5| 9| 9| 9| 9| 9| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | Accessory Adrenal Cortical Nodule | 3 3 | 2 3.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | + + M M + + + + + + | 8 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + I M + + + + + + | 8 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + M + + + + + + | 9 | |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + | 10 | Cyst | 3 | 1 3.0| |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + | 10 | Hyperplasia, Cystic | 2 2 1 | 3 1.7| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + | 10 | Pigmentation | 2 2 | 2 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 3 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| | A | 0PPM | 5| 5| 5| 5| 5| 9| 9| 9| 9| 9| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 1 1 | 2 1.0| Pigmentation | 1 | 1 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | Inflammation, Chronic | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | M + + + + + + + + + | 9 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 4 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| | A | 0PPM | 5| 5| 5| 5| 5| 9| 9| 9| 9| 9| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | Nephropathy | 1 | 1 1.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 5 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | A | 625 PPM | 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + I + | 9 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Infiltration Cellular, Mixed Cell | 1 1 1 1 1 1 1 | 7 1.0| Necrosis, Focal | 1 | 1 1.0| Hepatocyte, Vacuolization Cytoplasmic| 2 | 1 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 6 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | A | 625 PPM | 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | Follicular Cell, Hypertrophy | 1 1 1 1 1 1 1 1 | 8 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + | 10 | Cyst | 3 | 1 3.0| |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + | 10 | Hyperplasia, Cystic | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + | 10 | Pigmentation | 2 | 1 2.0| |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 7 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | A | 625 PPM | 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 2 1 1 1 1 | 5 1.2| Pigmentation | 1 1 1 | 3 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 8 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | A | 625 PPM | 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| | L | | 1| 2| 3| 4| 5| 1| 2| 3| 4| 5| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | Nephropathy | 1 | 1 1.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 9 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | A | 1250 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 3| 4| 5| 1| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Gallbladder | + + + M + + + + + + | 9 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Infiltration Cellular, Mixed Cell | 1 1 1 | 3 1.0| Hepatocyte, Vacuolization Cytoplasmic| 2 2 | 2 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 10 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | A | 1250 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 3| 4| 5| 1| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | Follicular Cell, Hypertrophy | 1 1 1 1 1 1 1 2 1 1 | 10 1.1| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + | 10 | Hyperplasia, Cystic | 3 2 2 2 | 4 2.3| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 11 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | A | 1250 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 3| 4| 5| 1| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 2 1 1 2 1 2 | 6 1.5| Pigmentation | 2 1 2 1 1 1 1 | 7 1.3| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 12 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | A | 1250 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 3| 4| 5| 1| | | _____________________________________________________________________________________________________________________|____________| URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 13 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| | A | 2500 PPM | 5| 5| 5| 5| 5| 7| 7| 7| 7| 8| | L | | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + M + + + + | 9 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Infiltration Cellular, Mixed Cell | 1 1 1 1 1 | 5 1.0| Hepatocyte, Vacuolization Cytoplasmic| 2 2 2 2 | 4 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 14 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| | A | 2500 PPM | 5| 5| 5| 5| 5| 7| 7| 7| 7| 8| | L | | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | Accessory Adrenal Cortical Nodule | 3 | 1 3.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | Follicular Cell, Hypertrophy | 2 2 1 2 1 2 2 2 2 1 | 10 1.7| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Ovary | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Uterus | + + + + + + + + + + | 10 | Hyperplasia, Cystic | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + | 10 | Pigmentation | 2 2 | 2 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 15 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| | A | 2500 PPM | 5| 5| 5| 5| 5| 7| 7| 7| 7| 8| | L | | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 2 3 1 3 3 3 3 3 3 2 | 10 2.6| Pigmentation | 2 2 2 1 2 2 2 2 2 2 | 10 1.9| Lymphoid Follicle, Atrophy | 1 3 1 1 | 4 1.5| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | Hyperplasia, Lymphoid | 2 | 1 2.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES 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 16 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| | A | 2500 PPM | 5| 5| 5| 5| 5| 7| 7| 7| 7| 8| | L | | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 17 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | A | 0PPM | 0| 1| 1| 1| 2| 2| 3| 3| 4| 5| | L | | 2| 0| 1| 3| 1| 6| 4| 5| 3| 9| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + I + + + + + + + + | 9 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + M + + + + + + + + | 9 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Infiltration Cellular, Mixed Cell | 1 1 | 2 1.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 18 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | A | 0PPM | 0| 1| 1| 1| 2| 2| 3| 3| 4| 5| | L | | 2| 0| 1| 3| 1| 6| 4| 5| 3| 9| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | Adrenal Cortex | + + + + + + + + + + | 10 | Accessory Adrenal Cortical Nodule | 3 3 | 2 3.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | M + + + + + + + + + | 9 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Coagulating Gland | + | 1 | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | Hyperplasia | 3 | 1 3.0| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 19 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | A | 0PPM | 0| 1| 1| 1| 2| 2| 3| 3| 4| 5| | L | | 2| 0| 1| 3| 1| 6| 4| 5| 3| 9| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Lymphoid Follicle, Hyperplasia | 1 | 1 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES 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 20 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | A | 0PPM | 0| 1| 1| 1| 2| 2| 3| 3| 4| 5| | L | | 2| 0| 1| 3| 1| 6| 4| 5| 3| 9| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | Hydronephrosis | 2 | 1 2.0| Nephropathy | 1 | 1 1.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | Transitional Epithelium, Hyperplasia | 2 | 1 2.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 21 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| | A | 625 PPM | 6| 6| 7| 7| 9| 9| 0| 0| 1| 1| | L | | 6| 7| 5| 6| 0| 7| 2| 9| 0| 9| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + M + + + + + + + | 9 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Infiltration Cellular, Mixed Cell | 1 1 1 | 3 1.0| Necrosis, Focal | 1 | 1 1.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | Valve, Hypertrophy | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 22 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| | A | 625 PPM | 6| 6| 7| 7| 9| 9| 0| 0| 1| 1| | L | | 6| 7| 5| 6| 0| 7| 2| 9| 0| 9| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | Hypertrophy, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | M + + + + + + + + + | 9 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | Follicular Cell, Hypertrophy | 1 1 1 1 1 | 5 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 23 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| | A | 625 PPM | 6| 6| 7| 7| 9| 9| 0| 0| 1| 1| | L | | 6| 7| 5| 6| 0| 7| 2| 9| 0| 9| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Lymph Node, Mandibular | + + I + + + + + + + | 9 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 1 1 1 1 1 | 5 1.0| Pigmentation | 1 | 1 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | Atrophy | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES 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 24 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| | A | 625 PPM | 6| 6| 7| 7| 9| 9| 0| 0| 1| 1| | L | | 6| 7| 5| 6| 0| 7| 2| 9| 0| 9| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | Cyst | 4 | 1 4.0| Hydronephrosis | 2 | 1 2.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 25 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | A | 1250 PPM | 2| 2| 3| 5| 5| 6| 6| 6| 7| 7| | L | | 1| 7| 5| 8| 9| 4| 6| 7| 5| 9| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | M + + + + I + + + + | 8 | |__________________________________________________________________________|____________| Gallbladder | + + I + + + + + + + | 9 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + M + M + + + + + | 8 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 1 | 1 1.0| Infiltration Cellular, Mixed Cell | 1 1 1 1 1 1 | 6 1.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 26 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | A | 1250 PPM | 2| 2| 3| 5| 5| 6| 6| 6| 7| 7| | L | | 1| 7| 5| 8| 9| 4| 6| 7| 5| 9| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + M + | 9 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | Follicular Cell, Hypertrophy | 1 1 1 1 1 2 2 1 1 | 9 1.2| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + | 10 | Inflammation, Chronic | 2 | 1 2.0| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | Hyperplasia | 2 2 | 2 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 27 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | A | 1250 PPM | 2| 2| 3| 5| 5| 6| 6| 6| 7| 7| | L | | 1| 7| 5| 8| 9| 4| 6| 7| 5| 9| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + M + + + + + + + + | 9 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 2 3 1 2 2 2 2 3 2 2 | 10 2.1| Pigmentation | 1 1 1 1 1 1 1 2 1 1 | 10 1.1| Lymphoid Follicle, Atrophy | 1 1 1 1 2 | 5 1.2| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | Hemorrhage | 2 | 1 2.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 28 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | A | 1250 PPM | 2| 2| 3| 5| 5| 6| 6| 6| 7| 7| | L | | 1| 7| 5| 8| 9| 4| 6| 7| 5| 9| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | Nephropathy | 1 | 1 1.0| Renal Tubule, Pigmentation | 1 | 1 1.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 29 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| | A | 2500 PPM | 8| 8| 8| 9| 9| 0| 0| 1| 1| 1| | L | | 1| 5| 7| 0| 4| 0| 8| 4| 6| 8| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Gallbladder | + + + + M + + + + + | 9 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + M + + + + | 9 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + | 10 | Infiltration Cellular, Mixed Cell | 1 1 | 2 1.0| Hepatocyte, Karyomegaly | 2 1 1 1 1 | 5 1.2| Hepatocyte, Vacuolization Cytoplasmic| 2 2 2 2 | 4 2.0| |__________________________________________________________________________|____________| Mesentery | + | 1 | Fat, Necrosis | 2 | 1 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | 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 30 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| | A | 2500 PPM | 8| 8| 8| 9| 9| 0| 0| 1| 1| 1| | L | | 1| 5| 7| 0| 4| 0| 8| 4| 6| 8| | | _____________________________________________________________________________________________________________________|____________| CARDIOVASCULAR SYSTEM - cont | | | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 10 | Accessory Adrenal Cortical Nodule | 3 | 1 3.0| Hyperplasia, Focal | 2 | 1 2.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + M + | 9 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 10 | Follicle, Cyst | 3 | 1 3.0| Follicular Cell, Hypertrophy | 2 1 2 2 1 2 2 2 2 2 | 10 1.8| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + | 10 | Cyst | 3 | 1 3.0| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________|____________| * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 31 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| | A | 2500 PPM | 8| 8| 8| 9| 9| 0| 0| 1| 1| 1| | L | | 1| 5| 7| 0| 4| 0| 8| 4| 6| 8| | | _____________________________________________________________________________________________________________________|____________| GENITAL SYSTEM - cont | | | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 10 | Hyperplasia | 2 1 2 2 2 | 5 1.8| |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 10 | Hematopoietic Cell Proliferation | 3 3 3 3 3 3 3 3 3 3 | 10 3.0| Pigmentation | 3 2 2 2 2 3 2 2 2 2 | 10 2.2| Lymphoid Follicle, Atrophy | 1 1 1 1 1 1 1 1 1 1 | 10 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | RESPIRATORY 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 32 NTP Experiment-Test: 92012-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC 2-METHYLIMIDAZOLE Date: 02/24/03 Route: DOSED FEED Time: 15:03:52 __________________________________________________________________________________________________________________________________ | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | T | ANIMAL ID | 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| | A | 2500 PPM | 8| 8| 8| 9| 9| 0| 0| 1| 1| 1| | L | | 1| 5| 7| 0| 4| 0| 8| 4| 6| 8| | | _____________________________________________________________________________________________________________________|____________| RESPIRATORY SYSTEM - cont | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + | 10 | Hemorrhage | 1 | 1 1.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 10 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Harderian Gland | M + + + + + + + + + | 9 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 10 | Nephropathy | 1 1 | 2 1.0| Renal Tubule, Pigmentation | 2 3 2 2 2 2 2 2 3 2 | 10 2.2| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + | 10 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 33 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------