In addition, partial or complete occlusion concerning the predominant pancreatic duct harboring viscid mucin generates abdominal symptoms including jaundice, epigastric pain or discomfort, weight loss, and backache, in addition to long‐standing hyperamylasemia in 70%–80% of cases of IPMNs or intraductal papillary mucinous neoplasms [48, 49, 50]. Here, MUC5AC is linked to pancreatic intraductal papillary-mucinous neoplasm.