本文阐述了经幕上幕下联合入路对岩骨及斜坡区巨大病变的显露、切除以及治疗效果.该入路依据病变部位和所需显露的范围,分为三种类型:一、迷路后入路:皮肤切口起于颧弓水平耳前1cm,绕耳轮弧形向上向后,再向下止于乳突尖下方,切口后肢可因病变需要继续向后延伸,甚至联合一侧枕下入路.暴露颧弓、颞鳞部、外耳道和乳突部.用高速电钻在显微镜下切除乳突气房、岩骨后上部的 This article describes the exposure, excision and treatment of the huge lesions in the rock mass and slope area through the combined approach of the curtain and the curtain.It is divided into three types according to the lesion location and the scope of exposure: Road: Skin incision from the zygomatic bow level 1cm before the ear, arc around the helix up and down, then down below the mastoid tip, incision hind limbs may need to continue to extend due to pathological changes, and even the joint suboccipital approach Exposed the zygomatic arch, the temporal scales, the external auditory canal, and the mastoid.A high power drill was used to remove the mastoid atrium under a microscope,