Omphalocele is caused by
Duplication of Intestinal loops
Reversed rotation of intestinal loop
Abnormal rotation of the intestinal loop
Failure of GUT to return to the body cavity from its physiological herniation
There are two abdominal wall defects due to failure of development of abdominal musculature:- Ref:- Sabiston 20th edition; Pg num:- 1071
G.I.T