1969年～1981年间,日本登记的原发性脑肿瘤25,307人中,≥60岁的老年患者3,316人,其发生率为13.3%;同期内脑转移瘤3,709例中,老年组占1,245例,发生率为33.5%.随着年龄结构的老化,老年人患原发或继发性脑肿瘤有逐年增加的趋势.老年人原发性脑肿瘤中,大约30%为恶性肿瘤.病理类型按脑转移瘤、脑膜瘤、恶性胶质瘤、神经纤维瘤和垂体瘤的顺序而递减.老年人患胶质母细胞瘤和恶性星形细胞瘤多,可能是老年人免疫机能降 Between 1969 and 1981, of the 25,307 primary brain tumors registered in Japan, 3,316 were elderly with ≥60 years of age, accounting for 13.3%. Of the 3,709 cases of middle-aged and elderly patients with brain metastases, 1,245 occurred in the same period The rate was 33.5% .With the aging of the age structure, the elderly suffering from primary or secondary brain tumors have increased year by year trend.Old elderly primary brain tumors, about 30% of malignant tumors.The pathological type of brain metastasis Tumor, meningioma, glioblastoma, neurofibromatosis and pituitary tumor in the order of decreasing.The elderly suffering from glioblastoma and malignant astrocytoma and more may be immune function in the elderly