Fig. 1From: Strangulated bowel obstruction caused by an ileo-ileal knot: a rare case reporta The mesentery of the small intestine is shown twisted (red arrow), with reduced contrast enhancement of the intestinal wall. b The small intestine is shown twisted and constricted (red arrow), resulting in decreased contrast enhancement of the intestinal wall in a figure-8 pattern centered at the site (oval)Back to article page