In addition, several researches have demonstrated that the DNAJB1–PRKACA gene fusion can also be found in the pancreatic and biliary intraductal oncocytic papillary neoplasm (IOPN), as well as in the intraductal papillary mucinous neoplasm (IPMN) of pancreas and pancreatic ductal adenocarcinoma. This evidence concerns the gene DNAJB1 and pancreatic intraductal papillary-mucinous neoplasm.