A rare cause of small bowel obstruction in adults: left paraduodenal internal hernia.

A 47 years old lady presented with repeated intermittent, colicky, left upper, and periumblical abdominal pain associated with nausea and vomiting since two years prior to admission. Each episode of the pain spontaneously subsided after bilious vomiting. The patient had no history of surgery, abdominal trauma or intra-abdominal infection, weight loss or previous history for small bowel obstruction (SBO). MRI enterography was suggestive of internal hernia and surgery documented left paraduodenal (mesocolic) internal hernia (LPDIH). After surgery the patient was followed for three months without any abdominal symptoms.