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脑转移瘤是肿瘤患者致残和死亡的重要原因,预后极差。一般认为,未治疗的转移性脑肿瘤平均生存期仅1个月[1],单用激素治疗为2个月,单独放射治疗为3个月。依据神经外科的统计,不同国家和地区报道脑转移瘤发病率差异很大,国内报道脑转移瘤占颅内肿瘤的3.5%~10%,国外个别报道转移瘤
Brain metastases is an important cause of disability and death of cancer patients, the prognosis is poor. It is generally believed that untreated metastatic brain tumors have an average survival of only 1 month [1], hormone therapy alone for 2 months and radiation therapy alone for 3 months. According to neurosurgery statistics, different countries and regions have reported a very different incidence of brain metastases, brain metastases reported in China accounted for 3.5% to 10% of intracranial tumors, foreign reports of individual metastases