title: Spontaneous rupture of a necrotic hepatic angiosarcoma: findings on dual-phase computed tomography and angiography.
abstract: We present dual-phase computed tomographic (CT) and angiographic findings of a ruptured hepatic angiosarcoma. These tumors can be divided into two types: those with and those without gross central necrosis with hemorrhage. In our case, the tumor had gross central necrosis, and CT and angiographic findings showed a small number of areas with a centripetal enhancement pattern and the rest of the tumor with avascular areas. We found that dual-phase CT and angiographic findings are able to distinguish angiosarcoma, which mimics a hemangioma, as these lesions show avascular areas that reflect a mass with gross central necrosis.
authors.affiliation: Department of Radiology, Kansai Medical University, 10-15 Fumizono, Moriguchi, Osaka 570-8507, Japan. ikedakos@takii.kmu.ac.jp
authors.forename: Koshi
authors.initials: K
authors.lastname: Ikeda
authors.forename: Minoru
authors.initials: M
authors.lastname: Maehara
authors.forename: Naoto
authors.initials: N
authors.lastname: Ohmura
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kurokawa
authors.forename: Kenji
authors.initials: K
authors.lastname: Koda
authors.forename: Hidetaro
authors.initials: H
authors.lastname: Yokoyama
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sawada
mesh_terms: D000792:Angiography / Q000379:methods; D017809:Fatal Outcome; D006394:Hemangiosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009336:Necrosis; D011860:Radiography, Abdominal; D012422:Rupture, Spontaneous; D014057:Tomography, X-Ray Computed / Q000379:methods*