Caecum and ascending colon herniated in the lesser sac through the Winslow's hiatus. A case report.

Herniation of the caecum and the ascending colon in the lesser sac through the Winslow's hiatus is an uncommon cause of intestinal occlusion. The clinical presentation can be acute or chronic. The diagnosis often remains unclear before surgical operation, even with the assistance of abdominal CT, providing an image of a digestive structure in the lesser sac and the presence of mesentery between the portal triad and the vena cava. The treatment consists of reducing the internal hernia, which could be considered under laparoscopy.