乳腺癌是女性中最常见的恶性肿瘤之一。几十年来，虽然早期诊断及治疗措施的改善，但未能减少乳腺癌的死亡率［１］，其主要原因是５０％的病人治疗后出现复发转移。目前认为乳腺癌的预后不仅与肿瘤累及范围有关，而且与区域淋巴结转移状况、病理组织学分化程度和雌、孕激... Breast cancer is one of the most common malignancies in women. Over the past few decades, although early diagnosis and treatment measures have improved, breast cancer mortality has not been reduced [1]. The main reason is that 50% of patients have relapsed and metastasized after treatment. At present, the prognosis of breast cancer is not only related to the extent of tumor involvement, but also with regional lymph node metastasis, histopathological differentiation, and gestational...