Through those space the structures in the cavernous sinus can be well exposed, and even with the maximal petrosal bone resection, the enlarged exposure includes petrous apex, the CPA, the upper clivus.

• 利用神经隔上的三角间隙，可暴露海绵窦内结构，对脑膜、神经鞘、海绵窦等结构病变可直视下手术;