迷路后进路能显露桥小脑角区,代替神经外科的开颅术治疗抽搐性三叉神经痛、桥小脑角区小型肿瘤、舌咽神经痛和面神经痉挛等疾病,还可切断前庭神经治疗美尼尔氏病和探查脑干病变,大部份操作均在硬脑膜外进行,对小脑牵拉甚微,损伤性小,是继耳部显微手术后的又一项新进展,本文复习并介绍与此进路有关的一些应用解剖。脑干由延髓、脑桥、大脑脚、中脑(四叠体)和间脑(包括视丘、视丘上部、视丘下部与视丘后部)组成。大脑脚之后下方为脑桥、脑桥后部为延髓,以脑桥为内界、颞骨锥体为前外界、小 After the labyrinth approach can reveal the cerebellopontine angle area, instead of neurosurgical craniotomy for the treatment of twitch trigeminal neuralgia, cerebellopontine small tumors, glossopharyngeal neuralgia and facial nerve spasm and other diseases, but also cut off the vestibular nerve treatment of Minneapolis S disease and exploration of brain stem lesions, most of the operations are carried out in the epidural, cerebellar little traction, less damage, is the ear after another microsurgery new progress, this review and introduction and This approach is related to some applied anatomy. The brainstem consists of the medulla oblongata, the pons, the cerebral peduncle, the midbrain (quadruplex) and the diencephalon (including the hypothalamus, the upper part of the hypothalamus, the lower part of the hypothalamus, and the posterior hypothalamus). The bottom of the brain after the foot of the pons, the medulla posterior for the medulla oblongata, the pontine for the inner world, the temporal bone cones for the outside world, small