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Two possibly iatrogenic biliary-duodenal fistulas in a single patient after medical and surgical interventions.

Nine out of every 10 abnormal biliary–enteric communications are the result of perforation caused by gallstones from the gallbladder or common bile duct (CBD) into the duodenum; the remaining one is the result of peptic ulcer, tumour, trauma or other local abnormalities.1 In the case we present here, 2 different biliary–enteric fistulas were found.