title: Portal biliopathy: imaging manifestations on multidetector computed tomography and magnetic resonance imaging.
abstract: Portal biliopathy refers to biliary abnormalities secondary to extrahepatic portal vein obstruction and cavernous transformation and is caused by vascular compression from peribiliary collateral vessels, producing segmental stenoses of the common bile duct and abnormal liver function test (LFT) results. A review of imaging studies yielded 18 patients with abnormal LFT results, biliary tract dilatation, and extrahepatic portal vein obstruction with cavernous transformation. Multidetector computed tomography and magnetic resonance imaging showed biliary stenotic segments in 11 patients secondary to extrinsic compression from enlarged peribiliary collaterals. Clinical and imaging follow-up demonstrated improvement in LFT results with minimal decrease in bile duct dilatation, eliminating percutaneous or endoscopic biliary intervention.
authors.affiliation: Department of Radiology, Fundacion Santa Fe de Bogota, University Hospital, Colombia.
authors.forename: Diego A
authors.initials: DA
authors.lastname: Aguirre
authors.forename: Farzin Alexander
authors.initials: FA
authors.lastname: Farhadi
authors.forename: Anand
authors.initials: A
authors.lastname: Rattansingh
authors.forename: Kartik S
authors.initials: KS
authors.lastname: Jhaveri
mesh_terms: D000328:Adult; D000368:Aged; D001649:Bile Duct Diseases / Q000000981:diagnostic imaging* / Q000473:pathology*; D001651:Cholestasis, Extrahepatic / Q000000981:diagnostic imaging / Q000473:pathology; D016208:Databases, Factual; D005260:Female; D006801:Humans; D006975:Hypertension, Portal / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods*; D011168:Portal System / Q000000981:diagnostic imaging / Q000473:pathology; D011169:Portal Vein / Q000000981:diagnostic imaging / Q000473:pathology; D011172:Portography / Q000379:methods; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index