4． 脑转移瘤（metastatic tumor of the brain）： CT：平扫肿瘤密度不等，60~70%为多发，多位与灰白质交界区。 肿瘤小者为实性结节，大者中间多有坏死，呈不规则环状。
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Objective to explore the differentiation between the primary brain tumor and metastatic brain tumor by the measurement of levels of serum tumor supplied group of factors (TSGF).
目的通过对脑肿瘤患者血清肿瘤相关生长因子(TSGF)的检测，探讨对于脑原发性肿瘤和脑转移性肿瘤的鉴别。
Objective: to study the ct and MRI Diagnosis and Antidiastole value of brain abscess and metastatic tumor.
目的：探索CT与MRI对脑脓肿及脑转移瘤的诊断及鉴别诊断价值。
Conclusions the treatment of 3d-crt and radiation therapy is effective for single metastatic brain tumor.
结论3d - CRT合并全脑放射治疗肺癌单发脑转移是种行之有效的治疗方法。
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