CT abdomen and pelvis
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The pancreas is swollen and the majority of the parenchyma is non-enhancing. Only a small amount of normally enhancing parenchyma is seen in the region of the pancreatic head. It displayed a marked dilatation of the common bile duct
CT reveals non-enhancement of pancreatic body and tail, indicating pancreatic necrosis.
The chief role of CT imaging in acute pancreatitis is to look for complications and hence imaging advised 48-72 hours after presentation. If the clinical information permits, a multi-phase pancreatic study is recommended to best illustrate necrosis, in addition to other potential complications, such as: peri-pancreatic collection, abscess and pseudoaneurysm.