title: Edema of the papilla of Vater simulating retained common duct stone.
abstract: A prominent or edematous papilla of Vater may prodce a rounded filling defect in the duodenum. During T tube or operative cholangiography, this may simulate a calculus impacted in the distal or intramural portion of the common bile duct. This communication reports such an occurrence. Recognition of this potential cause for a false positive cholangiogram should prevent some instances of unnecessary instrumentation of the common bile duct.
mesh_terms: D000368:Aged; D014670:Ampulla of Vater / Q000000981:diagnostic imaging*; D003137:Common Bile Duct Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D003937:Diagnosis, Differential; D004487:Edema / Q000150:complications / Q000000981:diagnostic imaging*; D005260:Female; D042882:Gallstones / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography