case_images: PMC7248578_01
case_images: a: Retroperitoneal free air (arrows) around the duodenum (D).. b: Perforated diverticulum at posterior wall of the duodenum.
case_images: gr1.jpg
case_images: PMC7248578_01_gr1.jpg
case_images: fig0005
case_images: Non-enhanced abdomino-pelvic computed tomography (CT) revealed free air located retroperitneally around the duodenum, indicating pan-peritonitis (Fig. 1a).