title: MRI and brainstem auditory evoked potential evidence of eighth cranial nerve involvement in multiple sclerosis.
abstract: An MS patient experienced sudden hearing loss. Brainstem auditory evoked potentials, previously normal, showed substantial abnormalities that suggested the impairment of the distal part of the acoustic nerve. MRI detected a small hyperintense lesion along the acoustic nerve; the lesion decreased in size and then disappeared after steroid treatment. This demonstrates that a demyelinating lesion in the distal tract of the eighth cranial nerve may cause an acute hearing loss in MS.
authors.affiliation: Multiple Sclerosis Center, Pavia, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Bergamaschi
authors.forename: A
authors.initials: A
authors.lastname: Romani
authors.forename: F
authors.initials: F
authors.lastname: Zappoli
authors.forename: M
authors.initials: M
authors.lastname: Versino
authors.forename: V
authors.initials: V
authors.lastname: Cosi
mesh_terms: D000328:Adult; D016057:Evoked Potentials, Auditory, Brain Stem; D005260:Female; D006311:Hearing Disorders / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009103:Multiple Sclerosis / Q000150:complications / Q000473:pathology* / Q000503:physiopathology*; D000159:Vestibulocochlear Nerve / Q000473:pathology* / Q000503:physiopathology*