Magnetic resonance imaging (MRI) of the brain and brainstem with gadolinium contrast can reveal vascular events (thrombotic or hemorrhagic), demyelinating disorders, or retrocochlear
lesions such as vestibular schwannoma and is indicated in all cases of suspected SSNHL.
Acute inflammatory demyelination in the cochlear nerve or more central auditory tracts may cause sudden retrocochlear
Although typical hearing loss for AN is retrocochlear
, there are cases where a cochlear type of hearing loss occurs.
This may be due to those individuals who might have retrocochlear
pathology in them along with cochlear pathology.
Computed tomographic scanning was used to reveal craniofacial or temporal bone malformations, while magnetic resonance imaging helped to rule out retrocochlear
pathology such as vestibular schwannoma, stroke, and/or demyelinating disease.
Given that CMT affects the retrocochlear
auditory pathway, there have been theoretical concerns that CI is incapable of providing meaningful auditory stimulation.
Kim, "Dexamethasone's effect in the retrocochlear
auditory centers of a noise-induced hearing loss mouse model," Otolaryngology-Head and Neck Surgery, vol.
Otoacoustic emission provides reliable evidence for the identification and diagnosis of cochlear and retrocochlear
lesions.3 Despite numerous studies on AN, there remains controversy over its pathological sites, etiology, pathogenesis and epidemiological characteristics, and effective therapies are still lacking.4 Therefore, this still needs to be studied further.
Cochlear and retrocochlear
SNHL were differentiated, and those with retrocochlear
hearing loss were excluded from the study.
The ABR has a wide range of clinical applications, including intraoperative monitoring, (10) screening for retrocochlear
pathology, (11) and universal newborn hearing screening.
 OAEs are altered if there is damage to the cochlea, but they are not disturbed if the retrocochlear
neural pathway is affected.
Central auditory pathway pathologies (aka retrocochlear