Vestibuloauditory impairment in Cogan's syndrome: a case report.

The onset and progression of the auditory and vestibular difficulties which occur with typical Cogan's syndrome are outlined in this case study. These results are documented through a series of auditory and vestibular evaluations highlighting the improvement in hearing sensitivity and changes in vestibular function. The case presented is notable for the rather dramatic and sudden shifts in hearing sensitivity necessitating the use and the discontinuation of amplification.