随着诊断技术和人口素质的不断提高，早期乳腺癌的发现不断增加，这是乳腺癌保守治疗（ｃｏｎｓｅｒｖａｔｉｖｅ ｔｈｅｒａｐｙ）得以产生和发展的主要原因，尤其是大量的回顾性和前瞻性研究资料以及对乳腺肿瘤生物行为的纵深认识亦对这一领域研究起到重要的推动作用。虽然第 With the continuous improvement of diagnostic techniques and population quality, the discovery of early breast cancer continues to increase, which is the main reason for the emergence and development of conservative therapy in breast cancer. In particular, a large number of retrospective and prospective study data, In-depth understanding of the biological behavior of breast tumors also play an important role in promoting this area of ​​research. Although the first