Ileal Atresia

Etiology: in-utero vascular accident so it has no other associated congenital abnormalities
Enema: microcolon without any meconium filling defects
Clinical: most common intestinal atresia

Cases of Ileal Atresia

AXR of pneumoperitoneum — Supine AXR shows increased lucency in the upper abdomen without clear demonstration of the American football sign of the falciform ligament being outlined by free air.

Enema of ileal atresia — Enema shows a microcolon with an inability to reflux contrast into the dilated loops of distal small bowel.

Surgical image of ileal atresia — Surgical image shows a massively dilated distal ileum (to the left of the image) than then dramatically narrows in the center of the image.