Walled-off pancreatic necrosis
The patient complains of recurrent epigastric pain with history of previous necrotizing pancreatitis 6 weeks ago.
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Well defined peripherally-enhancing collection with internal heterogeneous component replacing the tail and body of pancreas, sparing the uncinate process with no calcification and no vascular pseudoaneurysm.
No CBD or intrahepatic biliary tree dilatation.
Fatty liver infiltration is noted.
Proven by surgical resection to be walled-off pancreatic necrosis. The history of necrotizing pancreatitis 6 weeks ago and radiological features also support the diagnosis.
Differential diagnosis includes pancreatic pseudocyst and pancreatic neoplasm.