<prompt> Pancreatic pseudocyst most commonly occurs after ?TraumaPancreatitisPancreatic surgeryPancreatic malignancy  <response>: Ans. is b i.e. Pancreatitis Most common cause of pancreatic pseudocyst is Pancreatitis 90 The second most common cause is trauma 10. Pseudocysts are seen in both acute and chronic pancreatitis. 