This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
On X-ray of the abdomen, soap bubble appearance is seen in: 
Select and explain. 
A. Multiple cystic kidney, B. Meconium ileus, C. Cystic lymphangiectasis, D. Volvulus
B: Meconium ileus
Answer: B: Meconium ileus 
Explanation: Ans. Meconium ileus