Caption |
Mammary gland: the mammary parenchyma is focally effaced by a small, nodular, densely cellular neoplastic mass surrounded by a thin fibrous capsule. This neoplasm is composed of closely packed glands lined by a one cell-thick cuboidal epithelium supported by a small amount of fibrovascular stroma. The glands are dilated by a small amount of proteinaceous material. The cells are cuboidal, with indistinct cell borders and a moderate amount of strongly acidophilic cytoplasm that often lipid vacuoles and proteinaceous droplets of various sizes. The adjacent mammary gland is lactational. |