Volvulus of the small intestine caused by right paraduodenal hernia: a case report.

This report describes a very rare case of right paraduodenal hernia presenting as volvulus of nonherniated small intestine. A 12-year-old boy presented with sudden onset of lower abdominal pain, and emergency laparotomy was performed on a diagnosis of small intestinal obstruction. Laparotomy confirmed right paraduodenal hernia and volvulus of the small intestine out of the hernia sac.