Caption |
Mammary gland: there is diffuse hyperplasia of the mammary gland with mild to moderate diffuse lactation. In addition, at the center of the tissue, there is a small, encapsulated, densely cellular, expensile neoplastic nodule (early stage of a glandular adenoma). The nodule is composed of closely-packed glands lined by a one cell-thick low columnar epithelium and supported by a small amount of fibrovascular stroma. Neoplastic cells are low columnar, with indistinct cell borders and a moderate amount of acidophilic cytoplasm that occasionally contains a few lipid vacuoles. The nucleus is basal, round, medium-sized and normochromatic. Anisokaryosis is moderate. Anisocytosis is mild. A few mitoses are noted. |