In BCT group,no patient had local recurrence. The 3-,5- years survival rate and distant metastasis rate was 97.2%,89.3% and 6.5%,respectively.

• 结果 平均随访 5 7个月 ；保乳组中无局部复发病例 ；3年生存率为 97.；2%25；5年生存率为 89