Two cases of aqueductal stenosis presenting with fluctuating hearing loss, tinnitus, and vertigo are presented. Audiovestibulometric assessment of both cases disclosed the characteristic pattern of disorder of the membranous inner ear. Non-tumoral aqueductal stenosis was demonstrated by computerized tomography in one case and by positive contrast ventriculography in the other. Shunting procedures of the cerebrospinal fluid resulted in resolution of inner ear dysfunction in both patients.
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Barlas et al. (1983) studied this question.
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