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Acoustic neuroma |
A tumor arising from Schwann cells of the 8th cranial nerve (most often the vestibular division, rather than the acoustic division). Neurofibromatosis type II strongly predisposes patients to acoustic neuromas.
SYMPTOMS: unilateral hearing loss and other neurologic findings when the tumor compresses the cerebellum, pons, or facial nerve. CAUSES: Unknown TREATMENT: Surgical excision SYNONYMS: Acoustic schwannoma |
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