title: Angiosarcoma associated with chronic lymphedema (Stewart-Treves syndrome) of the leg: MR imaging.
abstract: Magnetic resonance (MR) imaging findings of two patients with Stewart-Treves syndrome are presented. MR imaging showed edematous changes in the subcutaneous fat and skin masses that proved to be angiosarcomas. MR signal intensity of the tumor was low compared with fat on T1-weighted images and intermediate and heterogeneous on T2-weighted images. In one patient, administration of intravenous Gd-DTPA showed marked enhancement in the early phase, which persisted until the delayed phase. These finding on dynamic MR imaging may reflect the abundant vascular spaces seen in these tumors.
authors.affiliation: Department of Radiology, Saga Medical School Hospital, Saga City, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Nakazono
authors.forename: S
authors.initials: S
authors.lastname: Kudo
authors.forename: Y
authors.initials: Y
authors.lastname: Matsuo
authors.forename: R
authors.initials: R
authors.lastname: Matsubayashi
authors.forename: S
authors.initials: S
authors.lastname: Ehara
authors.forename: H
authors.initials: H
authors.lastname: Narisawa
authors.forename: N
authors.initials: N
authors.lastname: Yonemitsu
mesh_terms: D000368:Aged; D002908:Chronic Disease; D003287:Contrast Media; D017809:Fatal Outcome; D005260:Female; D019786:Gadolinium DTPA; D006394:Hemangiosarcoma / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007866:Leg; D008209:Lymphedema / Q000150:complications / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000601:surgery; D013577:Syndrome; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA