Autoimmune cholangitis mimicking periductal-infiltrating cholangiocarcinoma.
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.
Park
Ko Woon
KW
Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Kangnam-ku, 135-710, Korea.
Lim
Jae Hoon
JH
Jang
Kee Taek
KT
Choi
Dong Wook
DW
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
D003287:Contrast Media; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18; D019786:Gadolinium DTPA