Water lily sign is seen in
Classical signs of pulmonary hydatid cyst on chest X-rayUncomplicated hydatid cystComplicated hydatid cystWell circumscribed round radio-opacity (resembling canon ball on AP and rugby ball on lateral projection)Crescent signPolycyclic and bilobed appearanceCumbo or double arch signSlot sign (impending rupture)Waterlily or camelotte signRising sun signDry cyst sign(Ref: Chapman and Nakielny's Aids to Radiological Differential Diagnosis 6thEtd, page no.82)
TB
Aspergillosis
Hydatid cyst
Cryptococcosis
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