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RELATIVE VALUE OF DIAGNOSTIC TESTS FOR SMALL ACOUSTIC NEUROMAS

Levine Samuel C. M.D.; Antonelli, Patrick J. M.D.; Le, Chap T. Ph.D.; Haines, Stephen J. M.D.
Otology & Neurotology: September 1991
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ABSTRACT:

Auditory brainstem response is now widely employed as a screening test for acoustic neuromas because it is equally sensitive when standardized against computed tomography. We have detected eight small (<10 mm) acoustic neuromas using gadolinium enhanced magnetic resonance imaging. In three of these cases, the auditory brainstem response was falsely negative. In contrast, 19 patients with larger tumors (>10 mm) were found to have no false negative auditory brainstem responses. Auditory brainstem response appears to be less sensitive for detecting smalI, symptomatic acoustic neuromas.

© 1991, The American Journal of Otology, Inc.