Cochleovestibular involvement as the first sign of syphilis.

Three cases of syphilis with cochleovestibular symptoms are reported. There was either cochlear or vestibular involvement in two cases and, in the trird, cochlear and vestibular involvement together. The disorder was unilateral in all three. In one case there was a concurrent lesion of the oculomotor nerve which was the motive for consultation. There was no other symptom suggesting the diagnosis of syphilis in any case. The important features of diagnosis are discussed.