Distinguishing viruses responsible for influenza-like illness
cystic duct :: Article Creator Cystic Neoplasms Of The Pancreas Content Intraductal papillary mucinous neoplasms (IPMNs) usually occur within the head of the pancreas and arise within the pancreatic ducts. The ductal epithelium forms a papillary projection into the duct and mucin production causes intraluminal cystic dilation of the pancreatic ducts. Imaging studies demonstrate diffuse dilation of the pancreatic duct and the pancreatic parenchyma is often atrophic due to chronic duct obstruction. However, classic features of chronic pancreatitis such as calcification and a beaded appearance of the duct are not present. At ERCP, mucin can be seen extruding from the ampulla of Vater, a so called "fish-eye" lesion that is virtually diagnostic of IPMN. Initial reports suggested a male predominance, but more recent series indicate an equal distribution. Patients are usually in their seventh to eighth decade of life and present with abdomi