The pathologic reports classified by WHO were 4 cases of astrocytoma, 2 cases of anaplastic astrocytoma and 1 case of oligodendroglioma, The post-operative syndromes and signs improved in 5 cas...

• 结论:利用脑组织的自然解剖间隙,采用显微外科技术切除肿瘤是影响肿瘤切除及其预后的重要因素。