Ductal Carcinoma in situ (Low Power)

Ductal Carcinoma in situ (Low Power) • This low power view shows several large ducts containing microcalcifications (arrows). • The blackish discoloration at the edge of the tissue is due to the application of silver nitrate as a method of marking the margin of resection. • Although not obvious at this power the ducts are lined by abnormal cells of one type, rather than the usual myoepithelial and epithelial cell layers. • The diagnosis of carcinoma in situ cannot be made at this magnification. (Description By:Melinda Sanders, M.D. ) (Image Contrib. by: UCHC )