Intrapapillary mucinous tumor of the pancreas (with video)

摘要

A 71-year-old man with a 7-year history of type II diabetes mellitus and a 7-kg weight loss was referred for EUS for an ill-defined mass in the head of the pancreas. Endoscopy and EUS showed a widely patent, mucin-exuding ampulla of Vater (A and video, available online at www.giejournal.org) and a complex cystic mass in the head and uncinate of the pancreas. The cystic mass was ectatic dilation of the main pancreatic duct (12 mm, B, thin arrow), consistent with an intrapapillary muci-nous tumor of the pancreas (IPMN), which harbored multiple mural nodules (B, asterisk). The complex cystic mass measured 67 X 50 mm. A triple-phase CT scan of the abdomen (C) showed lobulated macrocystic lesions involving the pancreatic head and uncinate process.