Caption |
Mammary glandular adenoma (large): the mammary gland is effaced by a large, nodular, encapsulated, densely cellular mass. The neoplasm is composed of closely-packed glands lined by a one cell-thick cuboidal epithelium supported by a scant amount of fibrovascular stroma. Most glands are filled with an occasionally inspissated proteinaceous fluid. Neoplastic cells are cuboidal, with indistinct cell borders and a moderate amount of strongly amphophilic cytoplasm that often contains a few small lipid droplets. The nucleus generally is basal, round to oval, medium-sized, and normochromatic. Anisokaryosis and anisocytosis are mild. |