Presentation
Severe epigastric pain.
Patient Data
The pancreas enhances normally but appears oedematous. There is a large volume of fluid surrounding the pancreas, extending into the mesentery and into the anterior pararenal spaces bilaterally. The fluid is bound by fascial planes. There is no venous thrombosis, and no calcified gallstones are seen.
Case Discussion
In the first 72 hours following the onset of symptoms of acute pancreatitis, it is difficult to define the morphology (interstitial oedematous type versus necrotising type) accurately due to transient gland oedema and hypoperfusion being similar in imaging appearance to ischaemia and necrosis. Similarly, the fluid around the pancreas cannot be determined to be 'simple' or part of a necrotising process. Therefore, in the early phase, it is advisable to make a diagnosis of acute pancreatitis with peripancreatic fluid, and use the terminology described in the revised Atlanta Classification after the 72 hour mark, when the imaging becomes clearer.
In this case, the clinical course was benign (mild acute pancreatitis) and no follow up imaging has been acquired.