Study Comparing Pathological Responses Observed on Colorectal Cancer Metastases Resected After Preoperative Bevacizumab With FOLFOX or FOLFIRI.

The study is designed to analyze the pathological tumor response on resected colorectal cancer metastases after preoperative treatment with bevacizumab combined with FOLFOX or FOLFIRI regimen in a prospective cohort and to correlate this response with patient’s outcome.本研究旨在通过一项前瞻性队列研究，分析贝伐珠单抗（bevacizumab）联合FOLFOX或FOLFIRI方案术前治疗后，患者切除的结直肠癌转移灶的病理学肿瘤应答情况，并探讨该应答与患者预后的相关性。