title: Cholecystoduodenal fistula due to pancreatic carcinoma: CT diagnosis.
abstract: Spontaneous biliary-enteric fistula is almost always due to cholelithiasis or peptic ulcer disease; rarely is malignancy responsible. A patient with carcinoma of the pancreas who presented with gastrointestinal hemorrhage and pneumobilia due to a malignant cholecystoduodenal fistula is reported.
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000000981:diagnostic imaging; D001658:Biliary Fistula / Q000000981:diagnostic imaging / Q000209:etiology*; D004378:Duodenal Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007412:Intestinal Fistula / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed