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Differential diagnostic potential of otoacoustic emissions: a case study
M E Lutman1, S M Mason, S Sheppard
1MRC Institute of Hearing Research, Nottingham Clinical Outstation, General Hospital, UK.
Abstract:
An 11-year-old boy was identified as having a profound sensorineural hearing loss accompanied by clear click-evoked otoacoustic emissions. Further diagnostic testing by means of electrocochleography and auditory brainstem responses indicated a predominantly retrocochlear disorder with good cochlear function. However, radiological investigation ruled out the presence of any material space-occupying lesion. This case illustrates the contribution that can be made by otoacoustic emission testing to differential diagnosis.