Figure 12. Partial small bowel obstruction with prominent dilatation of a mid abdominal small bowel loop, but also fluid in the caecum and descending colon (a). The more caudal image through the pelvis (b) demonstrates the obstruction as being due to diverticular disease of the sigmoid (arrowheads) causing a pelvic abscess (arrows) within which the small bowel had become entangled.

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