Richter's hernia

A Richter's hernia occurs when the antimesenteric wall of the intestine protrudes through a defect in the abdominal wall. If such a herniation becomes necrotic and is subsequently reduced during hernia repair, perforation and peritonitis may result. A Richter's hernia can result in strangulation and necrosis in the absence of intestinal obstruction. It is a relatively rare but dangerous type of hernia.