枕大孔区脑膜瘤发病率约占颅内脑膜瘤的1.5%-3.2%。由于放化疗对其无明确疗效,显微外科手术治疗是目前最有效的治疗手段。而手术的困难在于术中需面对脑干、椎基动脉、后组脑神经等重要结构。随着对颅底解剖认识的提高,检查方法的完善以及微创神经外科技术的发展,本病的预后 The incidence of meningioma in the foramen magnum accounts for 1.5% -3.2% of intracranial meningioma. Because radiotherapy and chemotherapy for its no specific effect, microsurgery is the most effective treatment. The difficulty of surgery is to face the brain stem during operation, vertebral artery, the latter group of brain nerve and other important structures. With the improvement of understanding of the skull base, the improvement of inspection methods and the development of minimally invasive neurosurgery, the prognosis of this disease