Fig. 7
From: Gastrointestinal perforation: clinical and MDCT clues for identification of aetiology
75-year-old patient with duodenal perforation post-ERCP. a, b Axial contrast-enhanced image shows a focal discontinuity of wall enhancement (arrowhead), associated with retroperitoneal gas bubbles (open arrow) posterior to the 3rd duodenal segment and thickening of Gerota’s fascia (white arrow)