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Normal auditory brainstem response in patients with acoustic neuroma
Author(s) -
Telian Steven A.,
Niparko John K.,
Kemink John L.,
Graham Malcolm D.,
Kileny Paul R.
Publication year - 1989
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-198901000-00003
Subject(s) - acoustic neuroma , audiology , auditory brainstem response , brainstem , medicine , cerebellopontine angle , tinnitus , cochlear nerve , sensorineural hearing loss , neuroma , audiometry , hearing loss , cochlea , radiology , magnetic resonance imaging , surgery
Auditory brainstem response testing has been a major breakthrough in audiologic screening for acoustic neuroma because of its high degree of sensitivity. Although it is not uncommon for other cerebellopontine angle masses to present with normal ABR findings, reports of eighth nerve tumors with false‐negative auditory brainstem response tests are quite rare. A series of 120 acoustic neuromas resected at the University of Michigan was reviewed and revealed two such patients. These two patients presented with asymmetric sensorineural hearing loss and unilateral tinnitus and were found to have completely normal auditory brainstem response. The diagnosis of acoustic neuroma would have been delayed if a comprehensive evaluation had not been pursued.