title: Introduction to the imaging of biliary obstruction.
authors.forename: C
authors.initials: C
authors.lastname: Colagrande
mesh_terms: D001660:Biliary Tract Diseases / Q000150:complications / Q000175:diagnosis*; D001651:Cholestasis, Extrahepatic / Q000175:diagnosis* / Q000209:etiology; D002780:Cholestasis, Intrahepatic / Q000175:diagnosis* / Q000209:etiology; D003952:Diagnostic Imaging; D005188:False Negative Reactions; D006801:Humans; D008722:Methods