肿瘤新生血管在肿瘤发展过程中具有重要的作用。临床医生常根据肿瘤大小、淋巴结状态、多倍体数量以及S期比例等来决定乳癌术后是否进行化疗，然而目前还没有一项指标或联合指标能可靠地预测乳癌术后的转归[1]。近年发现肿瘤血管密度有可能较精确地预测肿瘤的转移趋势，是乳癌 Neovascularization of tumors plays an important role in the development of tumors. Clinicians often decide whether or not to undergo chemotherapy after breast cancer surgery based on tumor size, lymph node status, polyploidy, and S-phase ratio. However, there is currently no index or joint index that can reliably predict the outcome of breast cancer surgery [1 ]. In recent years, it has been found that tumor vascular density may more accurately predict the metastatic tendency of tumors. It is breast cancer.