Caption |
Mammary gland: there is moderate diffuse expansion of a mammary lobule. Within this lobule, a few acini are markedly expanded by closely packed epithelial cells that form solid areas and small glands with an inconspicuous lumen. The cells are polygonal, with distinct cell borders and a moderate amount of pale acidophilic cytoplasm. The nucleus is central, oval, medium-sized and hypochromatic. Anisokaryosis and anisocytosis are mild. There is no evidence of local invasion. Mitotic figures are numerous. A small focus of cornification (arrowhead) is present.There is moderate interstitial lymphocytic and plasmacytic inflammation and fibrosis. |