乳腺癌远处转移是导致乳腺癌病人死亡的主要因素。提高乳腺癌微转移的检出率 ,从而判断预后和合理地选择治疗方案 ,是提高病人生存率的关键。随着免疫学以及分子生物学技术的发展 ,乳腺癌微转移的研究越来越受到人们的重视 ,本文就该领域的研究作一综述。1　乳腺癌微转移的概念 Distant metastasis of breast cancer is the leading cause of death in breast cancer patients. To improve the detection rate of breast cancer micrometastases, so as to judge the prognosis and select the treatment plan rationally is the key to improve patient survival rate. With the development of immunology and molecular biology techniques, the research on the micrometastasis of breast cancer has drawn more and more attention. This article reviews the research in this field. 1 breast cancer micrometastasis concept