It is commonly accepted that postmastectomy chest-wall irradiation can improve the regional control of breast cancer,so theoretically reducing the rate of metastasis.

• 乳腺癌术后行胸壁照射能有效控制肿瘤的局部复发,理论上也就降低了其远处转移率,这一理论已得到放疗界认可。