title: Characteristics of Hepatic Schwannoma Presenting as an Unusual Multi-cystic Mass on Gadoxetic Acid Disodium-enhanced MR Imaging.
abstract: Hepatic schwannoma is a very rare hepatic tumor, usually appearing as a hypervascular solid mass with or without various degrees of cystic changes; however, to the best of our knowledge, only the two cases of hepatic schwannoma showing a multi-cystic appearance have previously been reported. We report herein a benign hepatic schwannoma presenting as an unusually large multi-cystic mass. The gadoxetic acid disodium-enhanced magnetic resonance imaging features are described with the histopathologic correlation and briefly review the literature. The solid-like areas showing the early/progressive enhancement, reflecting remnants of the Antoni A/B portion, during the dynamic phases may be helpful imaging features for the differentiation of other multi-cystic hepatic lesions, but pathological evaluation remains essential for diagnosis.
authors.affiliation: Department of Radiology, Nihon University School of Medicine.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Haradome
authors.affiliation: Department of Radiology, Nihon University School of Medicine.
authors.forename: Jun
authors.initials: J
authors.lastname: Woo
authors.affiliation: Department of Digestive Surgery, Nihon University School of Medicine.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Nakayama
authors.affiliation: Department of Pathology, Nihon University School of Medicine.
authors.forename: Haruna N
authors.initials: HN
authors.lastname: Watanabe
authors.affiliation: Department of Gastroenterology, Nihon University School of Medicine.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Ogawa
authors.affiliation: Department of Gastroenterology, Nihon University School of Medicine.
authors.forename: Mitsuhiko
authors.initials: M
authors.lastname: Moriyama
authors.affiliation: Department of Pathology, Nihon University School of Medicine.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Sugitani
authors.affiliation: Department of Digestive Surgery, Nihon University School of Medicine.
authors.forename: Tadatoshi
authors.initials: T
authors.lastname: Takayama
authors.affiliation: Department of Radiology, Graduate School of Medicine, The University of Tokyo.
authors.forename: Osamu
authors.initials: O
authors.lastname: Abe
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000473:pathology*; D003287:Contrast Media; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging* / Q000473:pathology*
chemical_list: D003287:Contrast Media; C073590:gadolinium ethoxybenzyl DTPA; D019786:Gadolinium DTPA
keywords: gadoxetic acid disodium; liver; magnetic resonance imaging; schwannoma