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Diffuse irregular circumferential wall thickening affects a long segment of the colon, measuring at least 25 cm in length. This involvement includes the sigmoid, rectum, as well as the anal canal. The maximum wall thickness is observed in the lower part of the rectum, measuring about 1.6 cm, associated with marked adjacent fatty stranding. This fat stranding becomes more prominent in the upper part of the rectum and the distal part of the sigmoid, mainly surrounding multiple air-containing outpouchings arising from the wall of the rectosigmoid part (complicated diverticulitis).

There is evidence of a small gas locule between the anterior wall of the rectosigmoid part of the colon and the posterior superior wall of the urinary bladder. This area shows inflammatory wall thickening and is filled with an intraluminal air-fluid level with a loss of the fatty plane between the posterior wall of the urinary bladder and rectosigmoid junction at this level. This raises the possibility of developing a fistulous tract between the rectosigmoid junction and the urinary bladder (colovesical fistula).

Multiple oval-shaped lymph nodes are noted at para-aortic and bilateral iliac regions, with the largest measuring 17 x 8 mm in the left para-aortic region.

Circumferential atheromatous plaque affects the distal part of the aorta, causing less than 20% stenosis. It is associated with complete occlusion of the left common iliac artery and the absence of contrast flow for a segment of about 4.4 cm. Additionally, there is a calcified plaque in its posterior wall measuring about 1.8 x 0.2 cm, with refilling of the artery with contrast just before the bifurcation, continuing to the left internal iliac artery and external iliac artery. The right common iliac artery shows a partially calcified atheromatous plaque, more prominent at its middle part, causing about 30% stenosis. Multiple interrupted calcified plaques are noted at both internal iliac arteries, more so on the left side.

No measurable free fluid collection is observed.

The prostate is enlarged with no obvious lesion (BPH).