## **Core Concept**
Ileal atresia is a congenital condition characterized by the complete obstruction of the ileum, which is a part of the small intestine. This condition often presents with intestinal obstruction symptoms and is diagnosed with imaging studies. Radiological features play a crucial role in the diagnosis.

## **Why the Correct Answer is Right**
The correct answer, , represents a feature that is not typically associated with ileal atresia. In ileal atresia, common radiological features include:
- Multiple air-filled loops of bowel on abdominal X-ray, indicating intestinal obstruction.
- A characteristic "double bubble" sign is more commonly associated with duodenal atresia, but in the context of small bowel atresias, a more typical finding would be multiple dilated loops.
- The absence of gas in the rectosigmoid colon can sometimes be seen due to the obstruction.

## **Why Each Wrong Option is Incorrect**
- **Option A:** - This option might represent a feature seen in ileal atresia, such as multiple dilated loops of intestine.
- **Option B:** - Similarly, this could be a feature like air-fluid levels seen on an erect abdominal X-ray, indicative of intestinal obstruction.
- **Option C:** - This might represent another typical feature of ileal atresia, such as the presence of a soft tissue mass or evidence of intestinal obstruction.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that the presence of a "double bubble" sign is highly suggestive of **duodenal atresia**, not ileal atresia. Ileal atresia typically presents with more distal intestinal obstruction signs.

## **Correct Answer:** .