title: Intrahepatic bile duct adenoma mimicking hepatic metastasis: case report and review of the literature.
abstract: We present a case of bile duct adenoma that mimicked hepatic metastasis from gastric cancer. The adenoma exhibited prolonged enhancement on dynamic computed tomography, hyperintensity on diffusion-weighted imaging, and diminished uptake of superparamagnetic iron oxide and gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid on magnetic resonance imaging, resembling those of adenocarcinomas. Knowledge of the imaging findings of this rare entity may aid correct diagnosis.
authors.affiliation: Department of Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan. takumi@m2.kufm.kagoshima-u.ac.jp
authors.forename: Koji
authors.initials: K
authors.lastname: Takumi
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Fukukura
authors.forename: Kohei
authors.initials: K
authors.lastname: Nagasato
authors.forename: Masayuki
authors.initials: M
authors.lastname: Nakajo
authors.forename: Shoji
authors.initials: S
authors.lastname: Natsugoe
authors.forename: Michiyo
authors.initials: M
authors.lastname: Higashi
mesh_terms: D002759:Adenoma, Bile Duct / Q000473:pathology*; D000368:Aged; D001650:Bile Duct Neoplasms / Q000473:pathology*; D001653:Bile Ducts, Intrahepatic / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000473:pathology* / Q000556:secondary*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D013274:Stomach Neoplasms / Q000473:pathology*