There is significant thickening of the proximal sigmoid colon which contains numerous diverticula; marked fat stranding in the left iliac fossa adjacent to the sigmoid colon and free fluid in rectovesical pouch. The findings are in keeping with diverticulitis.
Multiple locules of free gas are seen in the left iliac fossa, adjacent to the sigmoid colon in keeping with perforation. In addition, there are multiple locules of gas of various sizes below the diaphragm and adjacent to anterior abdominal wall.
Gastrostomy/PEG tube is in-situ. The gallbladder contains a calcified calculus in the fundus.