Bulky pancreas with marked retroperitoneal fat stranding, in keeping with acute pancreatitis. Lack of enhancement within pancreatic neck and proximal body are consistent with necrosis. No ductal dilatation or associated arterial or venous thrombosis. Duodenal diverticulum noted at the second part, adjacent to the pancreatic head.
Small amount of free fluid is seen in the pelvis. Small bilateral pleural effusions with bibasal atelectasis.
Conclusion: Acute pancreatitis with necrosis within the pancreatic neck and proximal body.