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原发性肺癌是我国常见的恶性肿瘤之一，其发病率近年来持续上升。其中非小细胞肺癌(non-small cell lungcancer，NSCLC)约占全部肺癌的2/3，由于难以早期诊断，在确诊时仅有约1/3的NSCLC能够手术切除，另有一部分病人勉强能够切除或姑息切除。放射治疗是NSCLC的另一个主要手段
Primary lung cancer is one of the most common malignant tumors in our country. Its incidence has been on the rise in recent years. Among them, non-small cell lung cancer (NSCLC) accounts for about two-thirds of all lung cancers. Due to the difficulty in early diagnosis, about 1/3 of NSCLCs can be surgically removed at the time of diagnosis and some patients can barely be resected Or palliative resection. Radiation therapy is another mainstay of NSCLC