Abstract
Transverse mesocolon hernia is a rare type of internal hernia. We report a unique case of transverse mesocolon hernia accompanied by retrograde intussusception and review the literature. A 60-year-old man with no previous surgical history presented with severe upper abdominal pain and frequent bouts of vomiting. Computed tomography scan showed the jejunum protruding to the posterior side of transverse colon with a proximal part invaginating into the duodenum in a retrograde fashion. An emergency laparotomy was performed for a suspected jejunal internal hernia accompanied by retrograde intussusception. Intraoperatively, a 20-cm portion of the most proximal jejunum was found to be herniated and incarcerated in the transverse mesocolon through an orifice formed at duodenojejunal fossa. The hernia and intussusception were reduced manually and the jejunum was revealed to be viable. Without any causes identified intraoperatively, the intussusception appeared to have occurred with an unknown etiology. The operation was completed with the closure of the orifice and good postoperative course followed.
