Figure 2

Pre-operative abdominal helical computed tomography (CT): horizontal view 1. On horizontal views, a closed loop of intestine (4) was identified against the liver (S4 and S5); the membranous structure (5) was identified as the falciform ligament in the center of the abdomen. On the left side, dilation of proximal intestines (6) and collapse of distal intestine (7) was seen.