The pancreatic head is expanded with associated peripancreatic inflammatory change, in particular involving the pancreaticoduodenal groove. Within the pancreatic head, there is a 1.1 cm apparently cystic lesion with a possible internal septum. There is no biliary ductal dilatation. The pancreatic duct is dilated (4mm) and somewhat irregular along its course to the level of the pancreatic head beyond which it is no longer visible. The gallbladder is non-distended. Fat planes surrounding the major upper abdominal vascular structures are unremarkable. The portal vein and SMV are normal in calibre without focal narrowing. There is no upper abdominal lymphadenopathy. No focal liver lesions.