title: Lobular carcinoma in situ in sclerosing adenosis.
abstract: The initial presentation of breast malignancy as noninvasive carcinoma in an area of sclerosing adenosis is unusual. Especially, lobular carcinoma in situ in sclerosing adenosis sometimes can be a potential source of confusion with invasive lobular carcinoma. We report a case of lobular carcinoma in situ presenting in adenosis exhibiting patterns akin to invasive lobular carcinoma, thus leading to potential misdiagnosis. Overall architecture of the lesion as seen at lower power and immunohistochemistry can be useful to distinguish between sclerosing adenosis with lobular carcinoma in situ and infiltrating lobular carcinoma.
authors.affiliation: Department of Pathology, Yonsei University College of Medicine, Seoul, Korea. jungwh96@yumc.yonsei.ac.kr
authors.forename: W H
authors.initials: WH
authors.lastname: Jung
authors.forename: T W
authors.initials: TW
authors.lastname: Noh
authors.forename: H J
authors.initials: HJ
authors.lastname: Kim
authors.forename: D Y
authors.initials: DY
authors.lastname: Kim
authors.forename: H D
authors.initials: HD
authors.lastname: Lee
authors.forename: K K
authors.initials: KK
authors.lastname: Oh
mesh_terms: D001943:Breast Neoplasms / Q000473:pathology*; D002278:Carcinoma in Situ / Q000473:pathology*; D018275:Carcinoma, Lobular / Q000473:pathology*; D005260:Female; D005348:Fibrocystic Breast Disease / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged