大多数神经胶质瘤呈浸润性生长,无法用手术根治,有些肿瘤因位置险恶或因位重要功能区而不能手术。而放射治疗相对来说适应症较宽且危险性较小,治疗得宜,后遗症也极少。一般说来,不论中枢神经系统肿瘤的恶性度如何,凡行术后放疗者的生存期皆长于单纯手术者。在放疗期间或放疗结束后均有不同程度的自觉或他觉症状改善。长期生存者有很好或较好的生存质量(恢复正常的生理或精神功能、或部分功能障碍改善持续3～6个月以上)。脑肿瘤的治疗选择 (一)单纯手术:恶性度低的星形细胞瘤(Ⅰ级)及少枝胶质细胞瘤、良性肿瘤如垂体腺 Most gliomas show invasive growth and cannot be cured by surgery. Some tumors cannot be operated because of the sinister location or because of an important functional area. Radiation therapy, on the other hand, has relatively wide indications and low risk. It is well treated and has few sequelae. In general, regardless of the degree of malignancy of the central nervous system tumors, the survival of those who undergo postoperative radiotherapy is longer than the surgery alone. During or after radiotherapy, there are varying degrees of self-consciousness or improvement in symptoms. Long-term survivors have good or good quality of life (restoration of normal physiological or mental function, or partial improvement of the dysfunction lasts 3 to 6 months or more). Treatment Options for Brain Tumors (I)Surgery: Astrocytomas with low grade (grade I) and oligodendrogliomas, benign tumors such as pituitary gland