The diagnosis and management of pre-invasive breast disease: Flat epithelial atypia – classification, pathologic features and clinical significance

Table 1 Other names used to describe lesions within the category of flat epithelial atypia

Description	Reference
Atypical cystic duct	[2]
Atypical cystic lobules	[3]
Atypical lobules type A (some examples)	[4]
Clinging carcinoma (monomorphic type)	[5,6]
Columnar alteration with prominent apical snouts and secretions with atypia	[7]
Columnar cell change with atypia^a	[12]
Columnar cell hyperplasia with atypia^a	[12]
Ductal intraepithelial neoplasia of the flat monomorphic type	[8]
Hypersecretory hyperplasia with atypia (some examples)	[9]
Pretubular hyperplasia	[10]
Small ectatic ducts lined by atypical ductal cells with apocrine snouts	[11]

ISSN: 1465-542X