Pathological examinations: In BCT group, the average of axillary lymph node was 9.6 and 3 case was positive (20.0%).

• 1)病理检查:保乳手术组手术标本石蜡病理检查各切缘均无癌浸润；腋窝淋巴结平均检出9.；6枚；阳性3例(20