An abnormal skin growth in the middle ear behind the eardrum is called cholesteatoma. Repeated infections and/or a tear or pulling inward of the eardrum can allow skin into the middle ear.
The American Academy of Otolaryngology—Head and Neck Surgery, Inc. considers unilateral and bilateral cochlear implantation as appropriate treatment for adults and children with severe to profound hearing loss.
Ototoxicity refers to injury of the inner ear (cochlear and/or vestibular end organs) as the result of exposure to chemicals or medications.
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American Academy of Otolaryngology
— Head and Neck Surgery
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