<prompt> Characteristic feature of Otosclerosis are all except-Conductive deafnessPositive rinnes testParacusis willisiiMobile ear drum  <response>: You are aware of all options given in Question.Just Remember: The following otoscopic findings in otosclerosis.Remember:Tympanic membrane is normal and mobile in 90 cases. i.e. option d is correct.Schwartz signFlammingo cases pink colour of tympanic membrane is seen in 10 cases. It indicates active focus with increased vascularity.Stapes footplateShows a rice grain biscuit type appearanceBlue mantles are seen histopathologically. 