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
Water lilly appearance in chest X-ray is suggestive of: 
Select and explain. 
A. Bronchiectasis, B. Bronchopleural fistula, C. Hydatid cyst, D. Sequestration cyst of lung
C: Hydatid cyst
Answer: C: Hydatid cyst 
Explanation: Ans. Hydatid cyst