Caption |
Mammary gland: the mammary gland is expanded by a nodular, unencapsulated, densely cellular neoplastic mass that has entrapped a moderate number of adipocytes. This mass is composed of glands supported by a small amount of fibrovascular stroma (some of which is pre-existing mammary connective tissue). The glands are contoured, anastomosed, with an inconspicuous lumen, and they are lined by a one cell-thick cuboidal to low columnar epithelium. Neoplastic cells have ill-defined cell borders, a moderate amount of strongly amphophilic cytoplasm, and a medium-size, oval, hyperchromatic nucleus oriented in the long axis of the neoplastic cell. Anisokaryosis and anisocytosis are minimal. A few mitoses are present. |