A case of Mirizzi syndrome with biliobiliary fistula (Corlette type I, Csendes type III)

Abstract

Mirizzi syndrome with biliobiliary fistula is a rare complication of cholecystolithiasis. It is difficult to distinguish their types or rule out malignant tumors using conventional preoperative imaging diagnosis. Herein, we report a case of a woman in her seventies who had cholecystolithiasis for the prior 30 years. She was referred to our hospital for suspicion of gallbladder tumor on abdominal CT. Abdominal CT revealed a gallstone strangulating the gallbladder neck. ERCP showed unilateral stenosis. Stenosis could not be rejected because of carcinoma, although Mirizzi syndrome was suspected. Direct viewing of stenosis using the SpyGlass system revealed it as Mirizzi syndrome accompanied by biliobiliary fistula (Corlette type I) and a defect of the semicircle of the common hepatic duct (Csendes type III).