Radiology Imaging of Alveolar Lung Disease edde6c42 Floating water lily sign is seen in A Aspergillosis B Hamartoma C Hydatid cyst D Cavitating metastasis High-Yield Explanation Ans. is 'c' i.e. Hydatid cyst Separated membranes floating with the cyst give the appearance of water lily.It is pathognomonic of hydatid cyst.