神經(jīng)鞘瘤又稱雪旺氏瘤(Schwannoma),來源于神經(jīng)鞘,。頭頸部神經(jīng)鞘瘤主要發(fā)生于顱神經(jīng),,如聽神經(jīng)、面神經(jīng),、舌下神經(jīng),、迷走神經(jīng);其次可發(fā)生于頭面部,、舌部的周圍神經(jīng),,發(fā)生于交感神經(jīng)的最為少見,。顱神經(jīng)鞘瘤占顱內(nèi)腫瘤5%~10%,發(fā)生于聽神經(jīng),,所以又稱聽神經(jīng)瘤(acoustic neurinoma)因位于小腦腦橋角,,故又稱小腦腦橋角瘤(cerebello-pontine angle tumor),其次見于三叉神經(jīng),。其他顱神經(jīng)則極少受累,,患者多為中、老年,,女多于男(2:1),。
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