<prompt> Water lily appearance in chest X-ray suggestive of the following condition:BronchiectasisBronchopleural fistulaHydatid cystSequestration cyst of lung  <response>: Chest X-ray finding of hydatid cyst of the lung: Dense homogenous opacity Collapsed laminated membrane produces an irregular projections in a fluid level due to rupture of the cyst- Water-lily appearance Crescentic cap of air, when it communicates into bronchial tree Ref: Srbs Manual of Surgery By Bhat, 2012, Page 1205. 