Introduction:

the cholecysto-enteric fistulas are uncommon, with the cholecysto-duodenal variety being the most common. They result from erosion with the subsequent formation of a fistoulous tract.

Clinical case:

a 59-year-old female, with a six-month history of biliary colic, with abdominal CT scan that shows pneumobilia, gastric distension and a mass in the pyloric sphincter. A conservative surgery is then performed.

Conclusion:

an interval cholecystectomy is a safe alternative.

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