11. In addition, in 1893 Politzer was the first to describe otosclerosis as a separate clinical entity. 12. He performed more than 30, 000 of these procedures restoring hearing to those affected by otosclerosis . 13. A double-blind study reveals that ipriflavone might be effective on reducing tinnitus on otosclerosis sufferers. 14. Numbness in the tympanic membrane during otosclerosis has the eponymous name of " Itard-Cholewa Symptom ". 15. The results of this surgery are generally most reliable in patients whose stapes has lost mobility because of otosclerosis . 16. As the stapes is ankylosed in otosclerosis , the lateral end of the ossicular chain may still be quite mobile. 17. He made contributions in the research of diseases such as tuberculosis of the ear, otosclerosis , and otogenous meningitis. 18. CHL in otosclerosis is caused by two main sites of involvement of the sclerotic ( or scar-like ) lesions. 19. Infections can be treated and even otosclerosis , a growth of spongy bone in the inner ear, can be corrected surgically. 20. If the mobility of the stapes is reduced due to otosclerosis , then stapedius muscle contraction does not significantly decrease the admittance.