Focal chronic pancreatitis mimicking intraductal papillary mucinous neoplasm of the pancreas

A case of chronic pancreatitis localized in the pancreatic head mimicking intraductal papillary mucinous neoplasm (IPMN) is reported. The patient presented with obstructive jaundice caused by a pancreatic head mass. Imaging findings showed clustered small cystic lesions within the mass and delayed enhanced area adjacent the cystic lesions. A malignant IPMN was suspected but the surgical specimen showed focal chronic pancreatitis.