Richter's hernia: an unusual presentation.

Richter's Hernia is an unusual form of herniation. The incarceration accompanying the hernia invariably leads to bowel ischemia. Chronic incarceration of the antimesenteric border of the intestine, presenting with a long-standing history of signs and symptoms with no dire consequences is unusual. We present a case with a typical acute presentation, and the only case we are aware of with a chronic incarceration leading to a true diverticulum of the hepatic flexure.