Caption |
Mammary gland: the mammary gland is expanded by a nodular, unencapsulated, expensile, densely cellular neoplasm. This neoplasm is composed of solid areas supported by a small amount of fibrovascular stroma. Neoplastic cells are medium-sized to large, polygonal, with ill-defined cell borders and a moderate amount of strongly amphophilic cytoplasm. The nucleus is central, round to oval, medium-size, occasionally with a slightly contoured nuclear membrane, slightly hypochromatic and with 1-3 medium size basophilic nucleoli. Anisokaryosis and anisocytosis are mild. Mitotic rate is elevated. A moderate number of neoplastic cells undergoes apoptosis. Necrosis and cavitation are present at the center of the largest trabeculae. |