Characteristic feature of Otosclerosis are all except:
Tuning Fork Tests in OtosclerosisRinnes test-negativeWebers test-lateralised to ear with greater conductive lossAbsolute bone conduction-normal (It is decreased in cochlear otosclerosis)Pure tone audiometry-shows loss of air conduction more for lower frequency. * Tympanic membrane is normal and mobile in 90% cases. Schwaz 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 appearanceBlue mantles are seen histopathologically.
Conductive deafness
Positive Rinne's test
Paracusis willisii
Mobile ear drum