Left iliac fossa and pelvic pain.
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Sigmoid colon concentric mural thickening is noted Involving a length of around 6 cm. The maximum wall thickness measuring around 15 mm. It is associated with scanty sigmoid diverticulae and multiple loco-regional mesenteric lymphadenitis. Stranding of the peri-colic fat, showing increased density and linear stranding. Lineal intra-mural loculated fluid collection is noted abutting the mesenteric border of the sigmoid colon, measuring 8 mm, representing a small thin rim intra-mural abscess formation.
Diverticulitis is a complication of diverticulosis, and most commonly involves the sigmoid, more commonly in the left colon and never the rectum. It may be complicated with abscess, perforation or fistula formation.
The presence of other diverticulae supports the diagnosis of diverticulitis in this case of segmental colonic inflammation.