Fig. 16
From: Gastrointestinal perforation: clinical and MDCT clues for identification of aetiology
82-year-old patient with perforated jejunal diverticulum. a, b Axial contrast-enhanced images demonstrate extensive mesenteric fat stranding (*) and free gas bubbles (arrows) relatively contained in a fluid collection around a contrast-filled jejunal loop with wall thickening (white arrowhead). Note the normal appearance of the terminal ileum and ileocaecal valve (arrowhead) that makes the diagnosis of inflammatory bowel disease unlikely