Successful observation of intraductal papillary mucinous neoplasm in the accessory pancreatic duct using a novel peroral pancreatoscopy

The utility of a peroral pancreatoscopy (POPS) system for intraductal papillary mucinous neoplasm (IPMN) has been widely reported [1]. However, accessing the accessory pancreatic duct using POPS from the major papilla is considered challenging due to the steep angle. We successfully employed a novel POPS system (eyeMax; Microtech Endoscopy, Nanjing, China) ([Fig. 1]) for the observation and biopsy of an IPMN in the accessory pancreatic duct from the major papilla.