Numerous diverticula of the sigmoid and descending colon. One of the sigmoid diverticula at the antimesenteric side shows a thick enhanced wall with a focal perforation and extraluminal gas with an adjacent air-fluid collection anterior to the psoas major muscle with surrounding fat stranding and thickening of the adjacent peritoneal reflections. Free intraperitoneal gas as well as in the retroperitoneum surrounding the kidneys mainly on the left and extending around the oesophagus through the oesophagal hiatus.
A small umbilical hernia is of epiploic content.