大多数听神经瘤(NA),特别是巨大肿瘤,可选择经迷路进路(TI)手术,其优点已为House和Hitselberger等手术创导者所介绍。本文针对3cm以上直径的肿瘤加以讨论,因此型肿瘤推移或压迫距离内耳道仅1cm的脑干,故难於处理。 The majority of acoustic neuroma (NA), especially large tumors, may choose to undergo transvaginal approach (TI) surgery, the advantages of which have been described by surgical pioneers such as House and Hitselberger. In this article, tumors with a diameter of more than 3 cm are discussed. Therefore, the type of tumor is difficult to handle because it is pushed or compressed only 1 cm from the inner ear canal.