title: Angiosarcoma of the breast - specific findings of MRI.
abstract: We present a case of low-grade angiosarcoma of the breast. A 26-year old woman presented with a lump in the left breast. An elastic hard and ill-defined tumor, 80 x 50 mm in size, was palpated in the upper region of her left breast. Mammography showed a dense lesion with poorly defined border. Ultrasonography showed a hyper-and hypo-echoic lesion with an unclear border, but no definite tumor. Fine needle aspiration cytology showed no evidence of malignancy. Therefore, she was followed with a diagnosis of mastopathy. Six months later, the lump got enlarged. A contrast-enhanced MRI of the breast was performed. It showed a 100 x 60 mm enhancing vascular mass. Most parts of the tumor enhanced remarkably at the early phase, and prolonged enhancement was recognized at the late phase. Core needle biopsy was performed, and a possible angiosarcoma was diagnosed. It is not easy to diagnose the mammary angiosarcoma. MRI may contribute to the accurate diagnosis and play an important role regarding this entity.
authors.affiliation: Department of Surgery, Kobe West City Hospital, Ichibancho, Nagata-ku, Kobe, Japan. u-1ro@kobe-nishishimin-hospi.jp
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Kikawa
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Konishi
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Nakamoto
authors.forename: Takehisa
authors.initials: T
authors.lastname: Harada
authors.forename: Masahiko
authors.initials: M
authors.lastname: Takeo
authors.forename: Masaaki
authors.initials: M
authors.lastname: Ogata
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Yamamoto
authors.forename: Noriaki
authors.initials: N
authors.lastname: Usuki
authors.forename: Masami
authors.initials: M
authors.lastname: Toyoshima
authors.forename: Eiji
authors.initials: E
authors.lastname: Katsuyama
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003287:Contrast Media; D005260:Female; D006394:Hemangiosarcoma / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D015413:Mastectomy, Simple; D009942:Organometallic Compounds
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; C090600:gadobutrol