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岩骨及斜坡区的肿瘤手术一直是棘手的问题。1976年H0use等报道了经耳蜗进路的手术方法，后经许多作者改进。该文报道了自1985年以来作者用改良的经耳蜗进路对累及岩骨或斜坡的23例肿瘤的手术方法及结果。病人全麻。用NIM－！型面神经监测仪监测口周及眶周肌。从耳廓上3cm至乳突
Tumor surgery in rock and slope areas has been a thorny issue. In 1976, H0use et al reported that the cochlear approach to surgery, after many authors improve. This article reports on the surgical methods and results of 23 cases of tumors involving petrous bone or slope with a modified cochlear approach since 1985. Patients with general anesthesia. Use NIM-! Facial nerve monitor monitors the perioral and orbital muscles. 3cm from the pinna to the mastoid