Otosclerosis Flashcards
1
Q
What is otosclerosis?
A
Replacement of normal bone by vascular spongy bone in the ossicles
2
Q
What is the inheritance pattern of otosclerosis?
A
Autosomal dominant
3
Q
What is the age of onset of otosclerosis?
A
20-40
4
Q
What are the features of otosclerosis?
A
Conductive deafness
Tinnitus
Normal TM
5
Q
How is otosclerosis investigated?
A
Audiometry
- conductive hearing loss
CT temporal bone
- new bone formation
6
Q
How is otosclerosis managed?
A
Hearing aid
Stapedectomy