A rare case of acute abdomen due to strangulated Waldayer's hernia.

INTRODUCTION An internal hernia is the herniation of an intestinal segment into an intra-peritoneal fossa, is an uncommon cause for intestinal obstruction and is difficult to diagnose preoperatively. PRESENTATION OF CASE We report a male patient 19 years old presenting with acute abdomen due to a strangulated Waldayer's hernia. DISCUSSION The paraduodenal hernias are more common in males (M:F ratio 3:1). The average age at diagnosis is 38.5 years clinically presenting with chronic intermittent post-parandial abdominal pain. An accurate incidence of paraduodenal hernias in infancy and childhood is unknown, but is quite rare. CONCLUSION Internal complicated hernias are difficult to diagnose and once discovered intra-operative anatomical variations are present with special attribution to the management of the hernia sac.