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. Most neoplastic cells are cuboidal, with indistinct cell borders and a moderate amount of acidophilic cytoplasm. The nucleus is central, medium-sized, oval, and normochromatic. Anisokaryosis and anisocytosis are mild. Mitoses are not detected. |