title: Atypically enhanced cavernous hemangiomas of the liver: centrifugal enhancement does not preclude the diagnosis of hepatic hemangioma.
abstract: The imaging features of an atypically enhanced hepatic hemangioma have not been well described in the literature, and the presence of such atypia may sometimes cause clinical problems in the differential diagnosis. Herein, we report a case of hepatic hemangioma demonstrating a previously unreported atypical enhancement pattern. On dynamic computed tomography during hepatic arteriography, a centrifugal enhancement pattern and subsequent peritumoral ring-shaped enhancement mimicking corona enhancement were found in cavernous hemangiomas of the liver in a 68-year-old Japanese man. Histopathological diagnosis of cavernous hemangioma of the liver was made on a biopsy specimen. Considering the importance of differentiating benign hepatic tumor from various forms of malignancy, radiologists and hepatologists should be aware of rare enhancement patterns sometimes seen in hepatic hemangioma. Establishing knowledge of the entire spectrum of atypical hepatic hemangioma may benefit the rational approach to future cases.
authors.affiliation: Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Matsushita
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Takehara
authors.forename: Hatsuko
authors.initials: H
authors.lastname: Nasu
authors.forename: Yuki
authors.initials: Y
authors.lastname: Hirai
authors.forename: Shuhei
authors.initials: S
authors.lastname: Yamashita
authors.forename: Kenichi
authors.initials: K
authors.lastname: Souda
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Miura
mesh_terms: D000368:Aged; D006392:Hemangioma, Cavernous / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D007089:Image Enhancement; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D008297:Male; D014057:Tomography, X-Ray Computed