Gastroschisis on a Transverse View of the Fetal Abdomen

This image of gastroschisis on a transverse view of the fetal abdomen was submitted by ObGyn.net reader Viorel Suciu-Lazar, MD. Can you name the numbered structures? (answers on the next page)

In addition to the aorta, you can see: (1) bowel loops, (2) umbilical cord-Doppler, (3) mesenteric vessels, and (4) stomach.