胸部肿瘤主要包括食管癌、支气管肺癌、纵隔肿瘤等,治疗上首选手术,其次是放疗。但部分患者因年龄过大及经济条件、严重心肺疾病,不能手术,还有些患者惧怕手术,所以放疗是适合多数胸部肿瘤患者的有效治疗手段。临床上放疗在胸部肿瘤的治疗中起到了积极的作用,但足量放疗后继发 The thoracic tumors mainly include esophageal cancer, bronchial lung cancer, and mediastinal tumor. The first choice of treatment is surgical treatment, followed by radiotherapy. However, some patients are too old and economic conditions, serious heart and lung disease, can not be surgery, and some patients are afraid of surgery, so radiotherapy is an effective treatment for most patients with chest cancer. Clinical radiotherapy has played a positive role in the treatment of thoracic tumors, but secondary to adequate radiotherapy