Pathology Image Detail

Caption	Mammary gland: the mammary gland is replaced and is expanded by a large, nodular, multilobular, densely cellular, well-delineated, unencapsulated neoplasm. Neoplastic lobules are separated by a small amount of loose fibrovascular stroma. A few large areas of necrosis (*) are present at the center and in the deeper portions of the neoplasm.
Description	Adenocarcinoma, glandular, mammary gland
Age at Necropsy	338 days
Contributor	Churchill GA (J:112750)
Pathologist	Mikaelian I (J:94320)
Method	H&E

General Note: Hemizygous mice. The genetic background of these mice was FVB/N. The transgene was originally generated on a (C57BL/6 x SJL)F2 background.