label: Breast Columnar Cell Hyperplasia with Atypia
label_lc: breast columnar cell hyperplasia with atypia
description: "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.  Cytologic atypia is present.  Prominent apical cytoplasmic snouts and intraluminal secretions are also present."