Endoscopic treatment of heterotopic pancreas localized in the duodenum.

Heterotopic pancreas is most frequently seen in the duodenum, lacking the normal anatomic and vascular structure of the pancreas (1). The preoperative diagnosis is usually complex and challenging. Treatment of cystic dystrophia of a heterotopic pancreas (CDHP) remains controversial. In this letter, we are presenting a case of giant CDHP that was diagnosed within the preoperative stage and treated with endoscopic cystoduodenostomy.