[Otosyphilis].

We present a case in which a patient infected with human immunodeficiency virus (HIV) developed a sensorineural hearing loss and tinnitus due to inner-ear syphilis affection. The patient had normal otomicroscopy, tympanometry, ear, nose & throat examination, caloric test and intracranial magnetic resonance imagining. Relevant serological blood samples and lumbal puncture indicated syphilis in its secondary stage or the early latent phase. Audiometry demonstrated a considerable improvement and tinnitus decreased after ten days of treatment with antibiotics and prednisone.