Catalog

Atypical ductal hyperplasia of breast

No MMS code

Link to WHO Definition

Atypical ductal hyperplasia of breast – http://id.who.int/icd/entity/1824292577

A neoplastic process that arises from the terminal ductal lobular unit of the breast parenchyma. It is usually solitary and confined to a single lobular unit. It is characterised by the presence of a monomorphic epithelial proliferation in a cribriform, micropapillary, or solid growth pattern. Focal architectural features of low grade ductal carcinoma in situ are present. There is an increased risk for development of invasive breast carcinoma.