早期喉癌放疗后,偶尔在长期生存者中于先前照射的喉发生第二个癌。对这种病变的处理传统上不照射,认为不可能完成全程放疗并可超出正常喉结构的耐受量。遗憾的是,手术治疗(全喉或部分喉切除)第二个癌,病人可能不会接受,因此用放疗作为替代。 After radiotherapy for early laryngeal cancer, a second cancer occasionally occurs in the previously irradiated larynx in long-term survivors. The treatment of this lesion is traditionally not irradiated and it is considered impossible to achieve full radiotherapy and to exceed the tolerance of normal laryngeal structures. Unfortunately, the second cancer after surgical treatment (total or partial laryngectomy) may not be accepted by the patient, so radiotherapy is used instead.