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Otosclerosis Screenshot_20220510_085341 - Coggle Diagram
Otosclerosis 
Definition
An abnormal growth of bone in the middle ear. This bone prevents structures within the ear to function properly causing hearing loss.
Symptoms
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Tinnitus, Roaring or hissing
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Diagnosis
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A special imaging test of head, temporal bone CT may be used to look for other causes of hearing loss.
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Pathophysiology
Otosclerosis is a localized bone remodeling process that occurs in the vicinity of the otic capsule. The otic capsule and the ossicles form from cartilaginous anlage by endochondral calcification; the calcification process is complete by age 1 year. Once calcified, the otic capsule exhibits little remodeling.