乳腺癌是女性最常见的恶性肿瘤 ,1999年美国约新增 176 30 0例乳腺癌 ,约 4 370 0人死于该疾病[1] 。近 30年来 ,尽管各种各样的化疗和内分泌治疗手段不断涌现 ,但在晚期乳腺癌病人中 ,有明显治疗效果的病例仅占 30 %～ 4 0 % ,显效时间仅 12～ 18个月[1] 。进一步了解乳腺癌发 Breast cancer is the most common malignancy in women. In 1999, there were about 176,300 cases of breast cancer in the United States and about 43,070 people died of the disease [1]. In recent 30 years, despite a variety of chemotherapy and endocrine therapy continue to emerge, but in patients with advanced breast cancer, there are significant cases of treatment effect of 30% to 40%, effective time is only 12 to 18 months [ 1] . Learn more about breast cancer