Preferred Label : Breast Columnar Cell Hyperplasia;
NCIt synonyms : Columnar Cell Hyperplasia of Breast; CCH; Columnar Cell Hyperplasia of the Breast;
CISMeF acronym : CCH;
NCIt definition : A columnar cell lesion characterized by the presence of enlarged terminal ductal lobular
units with dilated acini. The acini are lined by more than two layers of columnar
epithelial cells. Prominent apical cytoplasmic snouts are present. Secretions are
often present in the lumina of the dilated acini.;