title: Computed tomography of carcinoma of the ampulla of Vater.
abstract: CT findings were studied in 14 cases with carcinoma of the ampulla of Vater which were all proved by surgery. At pre-operation period, only 4 cases (29%) were accurately diagnosed and other 10 cases (71%) were misinterpreted on CT. The most concomitant error was a confusion with the pancreatic head carcinoma (57%). Although a mass was retrospectively visualized in 4 cases, indirect signs were rather prominent, such as enlargement of the pancreatic head (57%), dilatation of the pancreatic duct (71%) and that of the common bile duct (79%).
mesh_terms: D000368:Aged; D014670:Ampulla of Vater; D003138:Common Bile Duct Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D003937:Diagnosis, Differential; D003974:Diatrizoate Meglumine; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
chemical_list: D003974:Diatrizoate Meglumine