title: Adenomyoepithelioma of the breast: fine-needle aspiration biopsy and histologic findings.
abstract: Adenomyoepithelioma is an uncommon tumor of the breast which clinically presents as a discrete nodule and histologically is composed of lumenal spaces lined by a mixture of epithelial and myoepithelial cells. It has a spectrum of histologic appearances which are gradually gaining wider recognition. There are, however, only a few descriptions of the fine-needle aspiration biopsy (FNAB) findings in adenomyoepithelioma. We report the FNAB and histologic features of a mammary adenomyoepithelioma which contained a prominent epithelial component including a focus of marked epithelial atypia. This expands the spectrum of FNAB findings which have been reported in adenomyoepithelioma.
authors.affiliation: Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City 52242-1009, USA.
authors.forename: T H
authors.initials: TH
authors.lastname: Niemann
authors.forename: J A
authors.initials: JA
authors.lastname: Benda
authors.forename: M B
authors.initials: MB
authors.lastname: Cohen
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D001943:Breast Neoplasms / Q000473:pathology*; D003528:Carcinoma, Adenoid Cystic / Q000473:pathology*; D005260:Female; D006801:Humans