Science and Education Publishing American Journal of Medical Case Reports 2374-216X 3 8 2015 06 25 Left Paraduodenal Hernia: An Unusual Cause of Acute Intestinal Obstruction 225 226 EN Thiam O General surgery department, Aristide Le Dantec hospital of Dakar Toure AO Gueye ML Seck M Cisse M Foba ML Ka O Dieng M Dia A Toure CT AJMCR2015381 10.12691/ajmcr-3-8-1 2015 04 28 2015 06 19 2015 06 25 Internal hernia is an unusual pathology. They are underestimated becauseit is usually asymptomatic. The diagnosis is usually done during a complication like the acute intestinal obstruction. We report a case of left paraduodenal internal hernia. He was received at the emergency in a clinical presentation of acute intestinal obstruction. The abdomino- pelvicCT scan could not confirm the diagnosis in preoperative. The laparotomy confirms the diagnosis. The treatment consisted in the reduction of intestines and the closing of the bag. The post-operative was simple after a year of follow-up.