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
Floating water–Lily sign is feature of – 
Select and explain. 
A. Lung hydatid, B. Bronchial adenoma, C. Lung abscess, D. Aspergilloma
A: Lung hydatid
Answer: A: Lung hydatid 
Explanation: Water - Lily sign, also refered as camalote sign, is seen in ruptured hydatid cyst (echinococcosis) of lung.