A.最常見(jiàn)的原發(fā)部位是內(nèi)聽(tīng)道段前庭神經(jīng)的神經(jīng)膜細(xì)胞(Schwann細(xì)胞)
B.約2/3來(lái)自前庭上神經(jīng)
C.1/3來(lái)自前庭下神經(jīng)
D.起源于耳蝸神經(jīng)和面神經(jīng)者罕見(jiàn)
E.以上均正確
A.1%~5%
B.5%~10%
C.10%~15%
D.15%~20%
E.2U%~3U%
A.40%~50%
B.50%~60%
C.60%~70%
D.70%~80%
E.50%~90%