Management of bilateral acoustic tumors.

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Abstract
Bilateral acoustic tumors, often felt to represent a central form of von Recklinghausen's disease, pose a particularly challenging problem to the otologist. This retrospective study reviews the evaluation and surgical results in 15 patients with bilateral acoustic tumors from whom 23 tumors were removed. Early diagnosis can be achieved by clinical awareness of the disease, thorough radiologic evaluation, and appropriate family screening. Total tumor removal with preservation of hearing is usually possible if the lesion is not larger than 1.0 cm. Total removal with hearing preservation is usually not possible if the lesion is larger than 2.0 cm. Hydrocephalus and additional tumors can complicate the overall clinical picture. Guidelines for appropriate management of bilateral acoustic tumors are based on tumor size, hearing sensitivity, and associated intracranial pathology.

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