Incomplete rotation and zygosis of gut: A case report

During routine dissection practice we observed that in a 50 year old male cadaver the large intestine was situated in the left half of abdominal cavity and small intestine was on the right side. We studied the detailed organisation of different parts of gut and their derivatives and tried to find out its embryological significance. This type of arrangement of gut happens when the mid gut tube fails to rotate during its return into abdominal cavity after its development in the umbilical coelome. Ascending colon and distal duodenum were not fixed to the posterior abdominal wall due to failure of zygosis. This case is not only important for us from academic point of view but is very much important for surgeons and radiologists as well. So we would like to share this unique experience through this case report.