Problems in Auditory Evaluation for Neurosurgical Diagnosis

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Abstract
20 patients for 1957 to the present with surgically confirmed cerebellopontine angle tumors or acoustic neuromas, and also two patients with suspected angle lesions, were studied on all of the standard tests which have been suggested for diagnosis of this conditioa 10 had total deafness on the affected side, 6 had classical audiological signs of cerebellopontine angle tumors, 4 had negative audiological findings, and the two unconfirmed. No single test or study was consistently reliable. Negative auditory studies do not prove absence of a lesion. Positive auditory findings are fairly certain indications. In order to make a complete diagnosis, audiological, otological, radiological, and neurological findings are required.

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