放射线可在人类和实验动物的许多器管内诱发肿瘤,特别是骨髓一类组织更是如此,但中枢神经系统却有较大的抵抗力Hirosbima 和Nagasaki 的报告证实了这一点,然而近来报告对良性病变和头癣的放射治疗,诱发了中枢神经系统肿瘤。近二、三十年来,放射治疗原发性中枢神经系统恶性肿瘤卓有成效患者并能长期存活。但放射后又可继发中枢神经系统肿瘤偶发,主要为肉瘤和脑膜瘤,神经胶质瘤少见。本文报告三例放疗诱发的肿瘤,其中两例是神经胶质瘤。(见表1) Radiation can induce tumors in many tubes of both human and laboratory animals, especially in the bone marrow, but is more resistant to the central nervous system This is confirmed by the report by Hirosbima and Nagasaki, but recently reports of benign Radiation therapy for lesions and tinea capitis causes central nervous system tumors. Nearly two or three decades, radiotherapy of patients with primary CNS malignant tumors and long-term survival. However, secondary radiation after the central nervous system tumors, mainly for sarcoma and meningioma, glioma rare. This article reports three cases of radiotherapy-induced tumors, two of which are gliomas. (See Table 1)