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对于转移性结直肠癌的原发灶切除术,还存在很大的争议。之前的研究表明,5-氟尿嘧啶(5-FU)一线化疗使患者发生肿瘤原发灶相关并发症的风险很低。但是,一线联合化疗对原发
There is much controversy about the primary tumor resection of metastatic colorectal cancer. Previous studies have shown that first-line chemotherapy with 5-fluorouracil (5-FU) presents a low risk of developing complications associated with primary tumor in the tumor. However, first-line combination chemotherapy on the primary