Otosclerosis

What it means

In otosclerosis, a callus of bone accumulates on the stapes creating a partial fixation. This limits the movement of the stapes bone, which results in hearing loss.

Otosclerosis cannot be seen on an office examination. The audiogram indicates a conductive type of hearing loss. Testing of the stapedial reflexes indicates limited or no movement of the bones of hearing.

Rare diseases that can present with this3

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category