Rare auditory-electophysiology finding in Wilson's disease.

Wilson's disease is a rare genetic disease involving the malabsorption of copper by the body. The most common characteristic sign is the presence of Kayser-Fleischner ring surrounding the cornea. Other systemic and motor signs have been documented as well as MRI changes within the brain and brainstem. This rare case illustrates the potential importance of audiometric assessment for patients with Wilson's disease who complain of hearing loss, tinnitus and intra-aural pressure. Unilateral findings were significant for retrocochlear neural transmission delays.