Reference SummarySuwa T, Toxicol Pathol 2002 Mar-Apr;30(2):228-34

Title

Spontaneous lesions in control B6C3F1 mice and recommended sectioning of male accessory sex organs.

Authors

Suwa T; Nyska A; Haseman JK; Mahler JF; Maronpot RR

Journal

Toxicol Pathol

Volume

30

Issue

2

Year

2002

Pages

228-34

Abstract

Because sampling of the paired lobes (ventral, dorsal, lateral, and anterior) of the mouse prostate has often been inconsistent, comparisons among different investigations have lacked validity. The absence of site identification for prostatic lesions has made reported incidences relatively nonspecific. We present here the lobe-specific incidences and degree of severity of spontaneous lesions in prostate, coagulating gland (anterior prostatic lobe), seminal vesicles, and ampullary glands in 612 control B6C3F1 mice from 12 recent National Toxicology Program 2-year carcinogenicity and toxicity studies conducted in 1 of 4 different laboratories. Lymphocytic infiltration, inflammation, epithelial hyperplasia, mucinous cyst, and mucinous metaplasia were observed in the dorsolateral lobes. Lymphocytic infiltration, inflammation, epithelial hyperplasia, and edema were present in the ventral lobes. Lymphocytic infiltration, acinar dilatation, inflammation, epithelial hyperplasia, and atrophy occurred in the coagulating glands. No neoplastic lesions were observed in the prostate or coagulating gland. Lymphocytic infiltration, acinar dilatation, inflammation, atrophy, adenoma, adenocarcinoma, and a granular cell tumor were observed in the seminal vesicles. Lymphocytic infiltration was also present in the ampullary glands. The results of our survey indicate that the amounts of glandular tissues were not present consistently in slides from the different laboratories. Landmarks for uniform tissue trimming are needed. We therefore suggest an optimal trimming and embedding method for mouse prostate and seminal vesicles to ensure adequate, consistent sampling.

Links

J:75741 – MGI References
11950166 – National Library of Medicine/PubMed

Models

Strain Model Name Treatment Agent(s) Organ Affected Frequency Model Details
(C57BL/6N x C3H/HeN)F1 Adipose tissue liposarcoma Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Ampullary gland adenocarcinoma Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Ampullary gland adenoma Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Ampullary gland cyst - mucinous Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Ampullary gland lesion - neoplastic Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Ampullary gland metaplasia - mucinous Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Ampullary gland tumor Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Ampullary gland tumor - granular cell Ampullary gland

0

(C57BL/6N x C3H/HeN)F1 Blood vessel hemangiosarcoma Prostate gland - Dorsolateral lobe

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte hyperplasia Prostate gland - Dorsolateral lobe

26.97 - 42.18

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte hyperplasia Prostate gland - Anterior lobe

10.08 - 26.03

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte hyperplasia Prostate gland - Ventral lobe

28.46 - 38.46

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte hyperplasia Seminal vesicle

10.74 - 27.78

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte hyperplasia Ampullary gland

0 - 10.42

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte lymphoma Prostate gland - Dorsolateral lobe

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte lymphoma Prostate gland - Anterior lobe

0 - 2.74

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte lymphoma Prostate gland - Ventral lobe

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte lymphoma Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte - Lymphocyte lymphoma Ampullary gland

0 - 9.09

(C57BL/6N x C3H/HeN)F1 Leukocyte - Monocyte - Macrophage - Histiocyte histiocytic sarcoma Prostate gland - Dorsolateral lobe

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte - Monocyte - Macrophage - Histiocyte histiocytic sarcoma Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte leukemia Prostate gland - Dorsolateral lobe

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte leukemia Prostate gland - Ventral lobe

0 - observed

(C57BL/6N x C3H/HeN)F1 Leukocyte leukemia Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Lung carcinoma - bronchioalveolar Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe adenocarcinoma Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe adenoma Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe cyst - mucinous Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe hyperplasia - epithelial Prostate gland - Anterior lobe

0 - 1.39

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe lesion - neoplastic Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe metaplasia - mucinous Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe tumor Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Anterior lobe tumor - granular cell Prostate gland - Anterior lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe adenocarcinoma Prostate gland - Dorsolateral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe adenoma Prostate gland - Dorsolateral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe cyst - mucinous Prostate gland - Dorsolateral lobe

0 - 1.36

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe hyperplasia - epithelial Prostate gland - Dorsolateral lobe

0.66 - 1.37

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe lesion - neoplastic Prostate gland - Dorsolateral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe metaplasia - mucinous Prostate gland - Dorsolateral lobe

0 - 0.68

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe tumor Prostate gland - Dorsolateral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Dorsolateral lobe tumor - granular cell Prostate gland - Dorsolateral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe adenocarcinoma Prostate gland - Ventral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe adenoma Prostate gland - Ventral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe cyst - mucinous Prostate gland - Ventral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe hyperplasia - epithelial Prostate gland - Ventral lobe

0 - 2.54

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe lesion - neoplastic Prostate gland - Ventral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe metaplasia - mucinous Prostate gland - Ventral lobe

0

(C57BL/6N x C3H/HeN)F1 Prostate gland - Ventral lobe tumor - granular cell Prostate gland - Ventral lobe

0

(C57BL/6N x C3H/HeN)F1 Seminal vesicle adenocarcinoma Seminal vesicle

0 - 0.68

(C57BL/6N x C3H/HeN)F1 Seminal vesicle adenoma Seminal vesicle

0 - 0.67

(C57BL/6N x C3H/HeN)F1 Seminal vesicle cyst - mucinous Seminal vesicle

0

(C57BL/6N x C3H/HeN)F1 Seminal vesicle lesion - neoplastic Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Seminal vesicle metaplasia - mucinous Seminal vesicle

0

(C57BL/6N x C3H/HeN)F1 Seminal vesicle tumor Seminal vesicle

0 - observed

(C57BL/6N x C3H/HeN)F1 Seminal vesicle tumor - granular cell Seminal vesicle

0 - 0.62

(C57BL/6N x C3H/HeN)F1 (Unspecified organ) hyperplasia Prostate gland - Anterior lobe

0 - 2.74

(C57BL/6N x C3H/HeN)F1 (Unspecified organ) tumor Prostate gland - Dorsolateral lobe

0 - 2.83

(C57BL/6N x C3H/HeN)F1 (Unspecified organ) tumor Prostate gland - Ventral lobe

0 - 2.54

(C57BL/6N x C3H/HeN)F1 (Unspecified organ) tumor Seminal vesicle

0 - 2.7

(C57BL/6N x C3H/HeN)F1 (Unspecified organ) tumor Ampullary gland

0 - 9.09

(C57BL/6N x C3H/HeN)F1 (Unspecified organ) tumor Prostate gland - Anterior lobe

0.87