根治性放疗对Ⅰ及Ⅱ期上呼吸道和上消化道鳞癌有良效。手术仅能切除肉眼所见的大块肿瘤,而放疗对亚临床病灶有杀伤作用但对巨大的病灶则差些。因此二者有必要取长补短进行综合治疗。纽约纪念医院首先开始使用前瞻性随机法于术前进行低剂量照射再行颈部大块切除术。根据传统的方法往 Radical radiotherapy has good effects on stage I and II squamous cell carcinoma of upper respiratory tract and upper digestive tract. Surgery can only remove large tumors seen by the naked eye, while radiotherapy has a killing effect on subclinical lesions but is worse for large lesions. Therefore, it is necessary for both to complement each other and perform comprehensive treatment. New York Memorial Hospital first began using a prospective randomized preoperative low-dose irradiation followed by a major neck resection. According to the traditional method to