Caption |
Mammary gland: the mammary gland is expanded by a large cystic mass filled with a strongly acidophilic amorphous material. The cysts is lined by a thin layer of epithelial cells that, multifocally, form small papillary projections lined by a one cell-thick cuboidal epithelium. |
Description |
Adenoma, papillary and cystic, mammary gland |
Age at Necropsy |
225 days |
Notes |
Mammary tumors arising in these transgenic mice typically are solid carcinomas. Hence, this papillary and cystic adenoma may represent a spontaneous neoplasm rather than a transgene-driven neoplasm. |
Contributor |
Sundberg J (J:94307) |
Pathologist |
Mikaelian I (J:94320) |
Method |
H&E |