Characteristic feature of Otosclerosis are all except-

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 sign—Flammingo cases pink colour of tympanic membrane is seen in 10% cases. It indicates active focus with increased vascularity. Stapes footplate—Shows a rice grain / biscuit type appearance Blue mantles are seen histopathologically.