<Tr> <Th_colspan="2"> Omphalocele </Th> </Tr> <Tr> <Th> Specialty </Th> <Td> Medical genetics </Td> </Tr> <P> Omphalocele, also called exomphalos, is a rare abdominal wall defect in which the intestines, liver and occasionally other organs remain outside of the abdomen in a sac because of failure of the normal return of intestines and other contents back to the abdominal cavity during around the ninth week of intrauterine development . </P> <P> Omphalocele occurs in 1 in 4,000 births and is associated with a high rate of mortality (25%) and severe malformations, such as cardiac anomalies (50%), neural tube defect (40%), exstrophy of the bladder and Beckwith--Wiedemann syndrome . Approximately 15% of live - born infants with omphalocele have chromosomal abnormalities . About 30% of infants with an omphalocele have other congenital abnormalities . </P>

The meaning of the medical term omphalocele is