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µÎ°³°­³» ô¼öºÎ½Å°æ ½Å°æÃÊÁ¾ Intracranial Schwannoma of the Spinal Accessory Nerve

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Abstract

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A 98-year-old man presented with ataxic gait, left side hearing loss and vertigo.
symptoms which had first appeared four previously. MRI showed a 3 4§¯ mass in the
left cerebellopontine angle. The tumor was totally removed via the suboccipital route ;
During removal, the distal part of the nerve root from which the tumor arose was
stimulated and confirmed to be a spinal accessory nerve. immediately after surgery, the
patient's hearing returned and the other symptoms improved rapidiy. Histologic
examination showed that the tumor was a schwannoma.

Å°¿öµå

Schwannoma; Spinal accessory nerve; Hearing disturbance; Surgery;

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