Vestibular Schwannoma: The Current Knowledge
Vestibular schwannoma (VS) is a rare tumor. The incidence of VS in the United States is somewhere between 1.2 and 2.6 cases per 100,000 per year, with a median age at diagnosis of 55 years. Eighty-nine percent of all nerve sheath tumors are schwannomas, and 60% of benign schwannomas are VSs. The incidence of VS diagnosis is increasing as brain MRI scans are done for various reasons, with VS often being found incidentally. When they are symptomatic, they often present with asymmetric or sudden hearing loss, often with tinnitus, due to pressure on the adjacent cochlear nerve in the internal auditory canal.
Source: Otolaryngologic clinics of North America - Category: ENT & OMF Authors: Sujana S. Chandrasekhar Tags: Foreword Source Type: research
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