乳腺癌根治术后、放射治疗后，局部复发的治疗是临床棘手问题。常规方法是化疗＋激素疗法或合并局部的再次放射治疗。局部再次常规分次放射４５Ｇｙ以上仍可取得明显疗效，但肺脏是主要受限器官。大面积复发单纯通过电子线多野外照射治疗，剂量很难均匀，特别是局部经过２次以 After radical mastectomy and radiation therapy, the treatment of local recurrence is a clinically intractable problem. The conventional method is chemotherapy + hormone therapy or combined local re-radiotherapy. Partially repeated conventional fractionation of 45 Gy or more can still achieve significant results, but the lungs are the main restricted organs. The recurrence of large area is simply treated by electron beam and more field radiation. The dose is difficult to be even, especially after 2 times