Small pockets of pneumoperitoneum are seen in the right subdiaphragmatic space, mainly anterior to the liver, indicating bowel perforation.
In the rectosigmoid region, there is a 3 cm long linear density due to fish bone in the lumen of the loop traversing the bowel wall with adjacent pericolic fat stranding and locules of extraluminal air.
No collection.
Renal cortical cysts are seen on both sides.