Caption |
Mammary mass: the neoplasms forms slender papillary projections supported by a small amount of fibrovascular stroma. Neoplastic cells are low columnar with indistinct cell borders and a small amount of basophilic cytoplasm. Their nucleus is central, oval to round, with clumped chromatin, an a medium-sized basophilic nucleolus. Anisokaryosis and anisocytosis are mild. Mitotic index is high and numerous neoplastic cells undergo single cell necrosis.
NOTE: In later stage of progression, neoplastic cells often pile-up along the papillae. |