Fig. 14
From: Gastrointestinal perforation: clinical and MDCT clues for identification of aetiology
75-year-old patient with vasculitis. a Coronal contrast-enhanced illustrates pneumatosis intestinalis, and poor enhancement of the horizontal and ascending duodenum (arrowheads) and adjacent fat stranding. Note an incidental diverticulum (d) at the 2nd part of the duodenum, moderate amount of free fluid (f) and gas bubbles (open arrows) at the porta hepatis. b Axial CT image demonstrates gas in the superior mesenteric vein (black arrow) with adjacent fat stranding