title: Mammary hibernoma.
abstract: We report the case of a 39-year-old asymptomatic woman who presented for screening mammography. Mammography revealed a round, partially circumscribed, partially indistinct, noncalcified 4.5 cm mass in upper outer right breast. This vaguely palpable mass appeared as a well-circumscribed, oval, hyperechoic, parallel, septated mass on sonography. Ultrasound-guided core biopsy led to the diagnosis of hibernoma. Few cases of hibernomas have been reported in the English literature, and their occurrence in the breast is particularly rare [Eur J Surg Oncol 26 (2000) 430; Am J Surg Pathol 25 (2001) 809]. To our knowledge, this is the first case of mammary hibernoma in which the ultrasonographic and mammographic features of this unusual entity are demonstrated.
authors.affiliation: Department of Radiology, Adelaide and Meath Hospital Incorporating the National Children's Hospital, Tallaght, Dublin, Ireland.
authors.forename: Jane
authors.initials: J
authors.lastname: Colville
authors.forename: Kimberly
authors.initials: K
authors.lastname: Feigin
authors.forename: Laura
authors.initials: L
authors.lastname: Tang
authors.forename: Delia
authors.initials: D
authors.lastname: Keating
authors.forename: Michael A
authors.initials: MA
authors.lastname: Cohen
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008067:Lipoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008327:Mammography; D016217:Ultrasonography, Mammary