All are true about otosclerosis except: [PGI June 09, June 12)
|A||Increased incidence in female|
|C||Irreversible loss of hearing|
|D||Carhart's notch at 2000 Hz|
|E||Family history positive|
a. In otosclerosis - 50% cases have positive family history.
b. Females are affected more than males
c. Bilateral conductive deafness seen in otosclerosis is not irreversible as it can be successfully treated by stapedectomy / Stapedotomy
d. Senserineural hearing loss occurs when later in the course of time osteosclerotic focus reaches the cochlear endosteum but actually most common hearing loss seen is conductive type.?
e. Cahartz notch is seen in bone conduction curve at 2000 Hz.