title: Secretory carcinoma of the breast.
abstract: Secretory carcinoma of the breast is a rare but histologically distinct variant of invasive ductal carcinoma that has an indolent growth pattern and a more favorable prognosis than that of typical ductal carcinoma. We present the imaging and histopathologic findings of a case of this tumor that initially manifested as a palpable mass in the left breast of a 31-year-old woman. It appeared sonographically as a round, well-circumscribed but microlobulated hypoechoic solid mass. Secretory carcinoma of the breast may resemble other well-circumscribed breast carcinomas as well as some benign masses, including fibroadenomas. Breast imagers should be aware of this rare tumor's nonspecific imaging features and clinical implications when making a differential diagnosis of solid breast masses.
authors.affiliation: Department of Radiology, Mok-dong Hospital, Ewha Womans University, 911-1 Mok-dong, Yangcheon-Ku, Seoul 158-710, South Korea.
authors.forename: Mi Hye
authors.initials: MH
authors.lastname: Paeng
authors.forename: Hye-Young
authors.initials: HY
authors.lastname: Choi
authors.forename: Sun Hee
authors.initials: SH
authors.lastname: Sung
authors.forename: Byung In
authors.initials: BI
authors.lastname: Moon
authors.forename: Sung Shine
authors.initials: SS
authors.lastname: Shim
mesh_terms: D000328:Adult; D044963:Biopsy, Fine-Needle; D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D018270:Carcinoma, Ductal, Breast / Q000000981:diagnostic imaging / Q000473:pathology; D005260:Female; D006801:Humans; D016217:Ultrasonography, Mammary