CT scan Diagnosis of<unk>  can be based on cyst fluid analysis: * Carcinoembryonic antigen (CEA) and CA-125 (low in<unk> s and elevated in tumors); * Fluid viscosity (low in<unk> s and elevated in tumors); * Amylase (usually high in<unk> s and low in tumors) The most useful imaging tools are: * Ultrasonography – the role of ultrasonography in imaging the pancreas is limited by patient habitus, operator experience and the fact that the pancreas lies behind the stomach (and so a gas-filled stomach will obscure the pancreas). * Computerized tomography – this is the gold standard for initial assessment and follow-up. * Magnetic resonance cholangiopancreatography (MRCP) – to establish the relationship of the<unk>  to the<unk>  ducts, though not routinely used
Pancreatic pseudocyst
Intraductal papillary mucinous neoplasm
Pancreatic cyst
Pancreatic abscess
Pancreatic fistula
Annular pancreas
Gastrojejunocolic fistula
Postcholecystectomy syndrome