RESUMO
Acute intestinal obstruction due to a congenital mesenteric defect is very rare. Herein we present a very rare case of acute small bowel obstruction in an adolescent boy as a result of internal herniation through a huge mesenteric defect. A 13-year old boy presented with a picture of acute small bowel obstruction of 2 days duration. Plain x-ray of the abdomen showed dilated small bowel loops with multiple air fluid levels throughout. Patient was resuscitated followed by immediate exploratory laparotomy. Intra-operatively, there was a big mesenteric defect through which a long segment of small bowel was incarcerated and obstructed; fortunately, the herniated loop was viable. Reduction of the bowel was done along with repair of the congenital defect. Patient had a smooth postoperative course