论文部分内容阅读
直肠癌术前或术后辅助放疗提高对肿瘤的控制和生存率。肿瘤的放疗效应不同 ,4%～ 30 %完全消失 ,30 %～ 61 %显著降期 ( down- stage) ,这或许不但是由于肿瘤大小和分期不同而且是生物学特性差异的结果。本文目的是确定分子标志物在判断术前放疗 +根治性手术治疗直肠癌患者的肿
Preoperative or postoperative adjuvant radiotherapy for rectal cancer improves tumor control and survival. The tumor response should be different, with 4% to 30% disappearing completely, and 30% to 61% down-stage. This may be due not only to differences in tumor size and stage but also to differences in biological characteristics. The purpose of this article is to determine the presence of molecular markers in preoperative radiotherapy + radical surgery for rectal cancer.