Abstract
A 10-year-old female with unilateral psychogenic hearing loss is discribed. The external causes of hearing loss were contusion to the ear region on three occasions. Hearing loss occurred suddenly after the first two occasions of contusion to the ear. Low damage hearing loss on pure-tone audiometry was revealed both times, and hearing was restored to normal completely for a few weeks. These cases of hearing loss were attributed to concussion of the inner ear. After the third contusion, hearing loss occurred suddenly in her right ear as it had the first two times. There was sensory-neural hearing loss on the right side in pure tone audiometry, however the auditory brainstem response and stapedial reflex were normal. The contradictions between subjective and objective data suggested a unilateral psychogenic hearing loss. This case was subsequently diagnosed as unilateral psychogenic hearing loss induced by the experience of contusion to the ear region. Hearing levels subsequently returned to normal without any psychosomatic treatment. These observations suggest that evaluation of the auditory brainstem response is important to diagnose psychogenic hearing loss.
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