Preferred Label : Breast Atypical Ductal Hyperplasia;
NCIt synonyms : Atypical Ductal Hyperplasia of the Breast; Atypical Breast Ductal Hyperplasia; Atypical Ductal Hyperplasia of Breast; Ductal Intraepithelial Neoplasia, Grade 1B; ADH; DIN 1B;
NCIt related terms : Atypical Ductal Breast Hyperplasia; atypical ductal hyperplasia;
CISMeF acronym : ADH;
NCIt definition : A neoplastic process that arises from the terminal ductal lobular unit of the breast
parenchyma. It is usually solitary and confined to a single lobular unit. It is characterized
by the presence of a monomorphic epithelial proliferation in a cribriform, micropapillary,
or solid growth pattern. Focal architectural features of low grade ductal carcinoma
in situ are present. There is an increased risk for development of invasive breast
carcinoma.;
Alternative definition : NCI-GLOSS: A benign (not cancer) condition in which there are more cells than normal
in the breast lobules and the cells look abnormal under a microscope. Having atypical
lobular hyperplasia increases the risk of breast cancer.;
Neoplastic status : Undetermined;
Codes from synonyms : CDR0000638190; CDR0000638191; CDR0000638192;