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约50%肺癌患者确诊时已经有远处转移而失去手术治疗机会,40%手术与放疗后有活动性,故90%肺癌患者需要用化疗。肺癌对化疗的敏感程度以低分化小细胞肺癌最好,患者的中数生存期可提高4～5倍。
About 50% of patients with lung cancer have distant metastases and have lost surgical treatment when they are diagnosed. 40% have surgery and radiotherapy. Therefore, 90% of lung cancer patients need chemotherapy. The sensitivity of lung cancer to chemotherapy is best for poorly differentiated small cell lung cancer, and the median survival of patients can be increased by 4 to 5 times.