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[Neurinoma of the VIIIth cranial nerve with negative electrophysiological findings].

Electrophysiological features in acoustic neurinoma are reviewed. A case of an acoustic neurinoma with a normal BERA is reported. The authors conclude that no isolated electrophysiological sign is able to disclose a retrocochlear hearing loss. They insist on the necessity to interpret an unilateral hearing loss on basis of an integration of a complete clinical, paraclinical and electrophysiological testing.