Caption |
Papillary and secretory mammary adenocarcinoma: the neoplasm is composed of glands and papillae lined by a one cell-thick cuboidal to low columnar epithelium and supported by a small to moderate amount of collagen-rich fibrovascular stroma. Neoplastic cells are cuboidal to low columnar, with indistinct cell borders and a moderate amount of strongly amphophilic cytoplasm that occasionally contains a few small vacuoles of lipids. The nucleus is basal to central, medium-sized, oval, and normochromatic. The luminal spaces are filled with degenerated neoplastic cells. The stroma is infiltrated by a moderate number of neutrophils, lymphocytes and plasma cells. |