lobular neoplasia https://www.malacards.org/card/lobular_neoplasia lobular neoplasia lobular intraepithelial neoplasia A spectrum of non-invasive neoplastic lesions that arise from the terminal ductal lobular units of the breast. There is atypical small epithelial cell proliferation. Pagetoid involvement of the terminal ducts may or may not be present. In the minority of cases, there is a risk for subsequent development of invasive ductal or invasive lobular carcinoma. LIN MEDGEN:167824 NCIT:C27939 DOID:3010 LN MONDO:0002486 UMLS:C0861352 breast carcinoma in situ