Attack of acute pancreatitis 2 months ago. Now the patient complains of dyspepsia and pain
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A well defined rounded cystic lesion is seen occupying the pancreatic head. No enhancement of its wall and the pancreatic tissue and superior mesenteric vein are stretched around the lesion. The lesion was first discovered on ultrasonography and confirmed by CT.
In view of previous attack of pancreatitis, cystic lesion related to the pancreatic should prompt the diagnosis of pancreatic pseudocyst. Infection of the cyst leads to abscess formation. Other differential consideration includes choledochal cyst, cystic neoplasm, mesenteric cyst and abscess.