title: Intermittent common bile duct obstruction at ampulla of Vater due to chicken bone impaction: diagnosis by hepatobiliary imaging.
abstract: A patient with intermittent ascending cholangitis was evaluated for extrahepatic biliary obstruction with Tc-99m-pyridoxylidene glutamate. Imaging demonstrated incomplete obstruction of the distal common bile duct. At surgery, a chicken bone was found to be impacted at the ampulla of Vater in the afferent limb of a Billroth II gastroenterostomy.
mesh_terms: D000368:Aged; D014670:Ampulla of Vater; D002758:Cholangiography; D002761:Cholangitis / Q000175:diagnosis; D003135:Common Bile Duct / Q000000981:diagnostic imaging*; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D005971:Glutamates; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging; D008297:Male; D015609:Organotechnetium Compounds; D011730:Pyridoxal / Q000031:analogs & derivatives*; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D005971:Glutamates; D015609:Organotechnetium Compounds; C011551:technetium Tc 99m pyridoxylidene glutamate; D011730:Pyridoxal; D013667:Technetium