title: Autoimmune cholangitis mimicking periductal-infiltrating cholangiocarcinoma.
abstract: We report here on the imaging findings of a case of autoimmune cholangitis that involved a segmental bile duct of the liver. Abdominal computed tomogram showed ill-defined low-attenuation lesion at the hilar portion of the right hepatic lobe, and this was associated with peripheral intrahepatic bile duct dilatation. Gadolinium enhanced liver magnetic resonance imaging (MRI) showed wall thickening with periductal enhancement along the segmental tributaries of the right intrahepatic bile duct. The pathologic findings revealed lymphoplasmacytic infiltration and severe fibrosis, indicating autoimmune cholangitis.
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, 135-710, Korea.
authors.forename: Ko Woon
authors.initials: KW
authors.lastname: Park
authors.forename: Jae Hoon
authors.initials: JH
authors.lastname: Lim
authors.forename: Kee Taek
authors.initials: KT
authors.lastname: Jang
authors.forename: Dong Wook
authors.initials: DW
authors.lastname: Choi
mesh_terms: D001327:Autoimmune Diseases / Q000175:diagnosis* / Q000601:surgery; D001650:Bile Duct Neoplasms / Q000175:diagnosis; D001653:Bile Ducts, Intrahepatic; D001706:Biopsy; D018281:Cholangiocarcinoma / Q000175:diagnosis; D002761:Cholangitis / Q000175:diagnosis* / Q000601:surgery; D003287:Contrast Media; D003937:Diagnosis, Differential; D019788:Fluorodeoxyglucose F18; D019786:Gadolinium DTPA; D006498:Hepatectomy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019275:Radiopharmaceuticals; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18; D019786:Gadolinium DTPA