Transverse unenhanced abdominal CT scans of a 51-year-old man with AP who was discharged from the hospital 48 days after admission and had an EPIC score of 6. (A) Unilateral pleural effusions. (B) Bilateral retroperitoneal inflammation and mesenteric inflammation. (C and D) Ascites in perisplenic, perihepatic, interloop, and pelvic locations. AP = acute pancreatitis, EPIC = extrapancreatic inflammation on computed tomography.