A rare case of gastric fistulization of a main-duct IPMN: a case report.

We report a rare case of gastric fistulization in a patient with main-duct (MD) intraductal papillary mucinous neoplasm (IPMN). Fistulization to adjacent organs is a rare complication of this disease, mainly affecting the duodenum; the fact that the stomach was the only organ involved makes this case even more peculiar. The diagnosis of the fistula was made after examination with Endoscopic Ultrasound (EUS), since a previous computed tomography (CT) scan wasn't able to detect it.