[Mechanical ileus caused by strangulation of the small intestine in a left paraduodenal hernia and in a defect in the root of the mesentery].

A case of mechanical ileus caused by small intestine strangulation into a left paraduodenal hernia and through a circular defect in the root of the mesentery is presented. Whereas left paraduodenal hernia is very rare in the surgical casuistics, its occurrence associated with strangulation through a defect in the mesentery has not been documented up to now to the author's knowledge. The true cause of strangulation ileus was found at operation. Reduction of the intestinal loop from the defect in the root of the mesentery was followed by reduction of the loops from the hernial sac. Both apertures were repaired with great caution using individual sutures without resection of the hernial sac. The early and late postoperative evolutions were uneventful.