Caption |
In situ mammary carcinoma: this represents an early stage of in situ mammary carcinoma: the architecture of the mamamry gland is preserved but mammary lobules are packed with epithelial cells and often lack a lumen. Numerous cells in the mammary gland are round, have a very pale cytoplasm with a ground glass appearance, and have a medium-sized hypochromatic nucleus. These features are consistent with the features of a primitive epithelial cell. There is mild to moderate interstitial lymphocytic and plasmacytic inflammation. Myoepithelial differentiation is still detected and myoepithelial cells appear as cells with an ellongated nucleus parallel to the basement membrane and a scant amount of cytoplasm. |
