Preferred Label : Breast Atypical Medullary Carcinoma;
NCIt synonyms : Infiltrating Ductal Breast Carcinoma with Medullary Features; Atypical Medullary Breast Carcinoma;
NCIt related terms : Atypical medullary carcinoma;
NCIt definition : An invasive ductal breast carcinoma characterized by the presence of a predominantly
syncytial architectural pattern. It may have some, but not all the strictly defined
additional morphologic criteria which are necessary for the diagnosis of medullary
breast carcinoma (presence of a diffuse lymphoplasmacytic infiltrate, neoplastic round
cells with abundant cytoplasm and vesicular nuclei, complete histological circumscription,
and absence of glandular or tubular structures). It does not have the relatively favorable
outcome that characterizes medullary breast carcinoma.;