A primary bone dyscrasia involving the otic capsule with two forms:
Clinical otosclerosis: Abnormal spongy bone involves ossicular chain or other structures, leading to altered physi...
Progressive conductive hearing loss, usually with well-preserved speech discrimination
Patients are often soft-spoken and aware that they seem to hear better in noisy environments.
Because speech discrimination is usually preserve...
H80.90 Unspecified otosclerosis, unspecified ear
H80.20 Cochlear otosclerosis, unspecified ear
H80.00 Otosclerosis w oval window, nonobliterative, unsp ear
H80.10 Otosclerosis involving oval w...
The leading cause of conductive hearing loss in adults; clinical onset usually in early 20s—peak incidence third to fifth decade
The audiometric signature of otosclerosis is a dip in co...
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