RT Book, Section
A1 Wells, Robert G.
SR Print(0)
ID 1148946359
T1 The Anterior Abdominal Wall
T2 Diagnostic Imaging of Infants and Children
YR 2015
FD 2015
PB McGraw-Hill Education
PP New York, NY
SN 9780071808392
LK accesspediatrics.mhmedical.com/content.aspx?aid=1148946359
RD 2024/04/19
AB Omphalocele  and  gastroschisis  are  the  2  most  common  congenital  abdominal  wall  defects.  They  are  distinct  genetic  and  clinical  entities.  With  omphalocele,  there  is  failure  of  the  midgut  to  return  to  the  intraembryonic  coelomic  cavity.  The  affected  infant  has  herniation  of  abdominal  viscera  into  the  base  of  the  umbilical  cord.  The  herniated  organs  are  contained  within  a  sac  consisting  of  parietal  peritoneum  and  amnion.  A  small  omphalocele  may  contain  only  intestine,  whereas  a  larger  defect  sometimes  includes  herniation  of  the  liver.  With  gastroschisis,  there  is  herniation  of  abdominal  contents  through  a  defect  in  the  abdominal  wall  located  to  the  right  of  an  intact  umbilical  cord.  There  is  no  enveloping  sac  with  gastroschisis,  and  the  herniated  intestine  moves  freely  in  amniotic  fluid.1