患者因乳腺癌而行改良根除手术或根除术者 ,术后有较高的同侧上肢水肿的发生率 ,国内外报道的发生率约为 5 0 %～70 %,主要原因是腋窝淋巴结的解剖。近年来的研究认为前哨淋巴结是淋巴结中最先接受来自肿瘤部位淋巴液的淋巴结 ,是最先发生肿瘤转移的淋巴结 ,它可以通过肿瘤周围 Patients with breast cancer due to radical eradication or radical eradication, postoperative higher ipsilateral upper extremity edema incidence rate of about 50% to 70% at home and abroad, the main reason is the anatomy of axillary lymph nodes . In recent years, studies have shown that sentinel lymph node is the first lymph node lymph nodes from the tumor site to accept the lymph node is the first occurrence of tumor metastasis, which can pass around the tumor