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恶性肿瘤脑转移的发生率为２５％～３０％，尸检发生率要比临床发生率高。１９９６年３月至１９９８年１月，作者对４４例脑转移瘤患者进行了Ｘ线立体定向治疗，现将资料齐全的４１例报道如下。１ 材料与方法本组４１例中，男性３３例，女性８例，年龄２９～７６岁。小细胞肺
The incidence of malignant brain metastases is 25% to 30%, the incidence of autopsy than the high incidence of clinical. From March 1996 to January 1998, the authors performed 44 cases of brain metastases in patients with stereotactic X-ray treatment, the data are now complete report of 41 cases are as follows. 1 Materials and Methods The group of 41 cases, 33 males and 8 females, aged 29 to 76 years. Small cell lung