Image IQ: The Fetal Abdomen
What’s your diagnosis based on these images of the abdomen of a 30-week fetus?
Dilated fetal bowel
This may be due to either jejunal or ileal atresia. This condition is usually diagnosed in the third trimester of pregnancy. Meconium ileus may also present as dilated fetal bowel. However, this condition usually presents with an associated meconium peritonitis with resultant ascites. Duodenal atresia would present as a dilated proximal duodenum, giving rise to the double bubble appearance.