Caption |
Mammary gland: the mammary gland is effaced by a large, nodular, multilobular, unencapsulated, densely cellular, neoplastic mass. This mass is composed of large coalescing lobules separated by a scant amount of loose fibrovascular stroma with large ectatic vascular spaces (*). Necrosis and cavitation are common in most neoplastic lobules. The portion of the neoplasm located at the center of the photomicrograph is composed of large polygonal cells with distinct cell borders, a large amount of acidophilic cytoplasm, and medium-size hypochromatic nuclei. The portions of the neoplasm located at the periphery of this photomicrograph are composed of crowded small cells with indistinct cell borders, a small amount of acidophilic cytoplasm, and a slightly smaller and more hypochromatic nucleus. Anisokaryosis and anisocytosis are mild. Mitoses are numerous. |