title: Mirizzi syndrome and biliobiliary fistulas: roentgenologic appearance.
abstract: Five cases of extrahepatic cholestasis caused by impaction of a voluminous gallstone in the neck of the gallbladder or the cystic duct are reported. The formation of a biliobiliary fistula is the rule. Percutaneous transhepatic cholangiography visualizes the fistulas and permits their classification into 2 groups: gallbladder to hepatic duct, and cystic to hepatic duct. Preoperative diagnosis permits the best resolutions of 2 problems encountered during surgery: (1) the tumor-like feature often produced by the cholecystitis can be ascribed to benign lithiasic etiology if the biliobiliary fistula is diagnosed in the preoperative phase; and (b) treatment by biliary plasty, which requires first opening the gallbladder and partial cholecystectomy, has to be achieved.
mesh_terms: D000328:Adult; D000368:Aged; D001658:Biliary Fistula / Q000000981:diagnostic imaging* / Q000209:etiology; D002758:Cholangiography; D001651:Cholestasis, Extrahepatic / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D003549:Cystic Duct / Q000000981:diagnostic imaging; D005260:Female; D006500:Hepatic Duct, Common / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male