Results By means of adjusting the angle of microscope, the structures were exposed of ipsilateral cerebellopontile angle, anterior and lateral regions of the pons, and supratentorial area of the cerebellum.

• 结果通过调整显微镜角度,幕上下乙状窦前迷路后锁孔入路可显露同侧桥小脑角区、桥前区、桥侧方、脑幕上区的结构。