Difficulty in maskventilation is quitechallenging to an anaesthesiologist because maskventilation isthe primary technique of ventilation and the rescue techniqueif the tracheal intubation fails. Unanticipated difficulty in maskventilation is even more challenging to the anaesthesiologist.Case report Here we report a case of unanticipated difficultmask ventilation due to cystic swelling on left side ofepiglottis.