title: Auditory disorder in central nervous system miliary tuberculosis: case report.
abstract: We evaluated a 28-year-old female with a unilateral hearing loss of unusual pathogenesis, that of central nervous system miliary tuberculosis. Audiologic and otologic findings were consistent with left retrocochlear disorder, characterized by a profound hearing sensitivity loss, absent acoustic reflexes, normal otoacoustic emissions, and the presence of only wave I of the auditory brainstem response. Imaging studies revealed the presence of multiple punctate lesions, one of which was extra-axial and located at the left cerebellopontine angle. The pattern of audiometric test results, particularly the combination of normal otoacoustic emissions and profound hearing sensitivity loss, contributed importantly to the investigative sequence leading to the final diagnosis.
authors.affiliation: Nova Scotia Hearing and Speech Clinic and School of Human Communication Disorders, Dalhousie University, Halifax.
authors.forename: B A
authors.initials: BA
authors.lastname: Stach
authors.forename: B D
authors.initials: BD
authors.lastname: Westerberg
authors.forename: J B
authors.initials: JB
authors.lastname: Roberson
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D000995:Antitubercular Agents / Q000627:therapeutic use; D002530:Cerebellopontine Angle / Q000473:pathology; D003051:Cochlea / Q000502:physiology; D005072:Evoked Potentials, Auditory; D005260:Female; D034381:Hearing Loss / Q000175:diagnosis* / Q000209:etiology* / Q000503:physiopathology; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis* / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D012720:Severity of Illness Index; D013069:Speech Reception Threshold Test; D014391:Tuberculosis, Miliary / Q000150:complications* / Q000188:drug therapy / Q000473:pathology
chemical_list: D000995:Antitubercular Agents