放射治疗是鼻咽癌的标准治疗方法,但由于大多数患者确诊时已属局部晚期或晚期,尽管近年来放疗设备更新,照射技术进步,这类患者单纯放疗后的5年生存率一直徘徊在50%~60%之间[1]。其中远处复发转移而无局部复发者占总复发的74%,这也是局部晚期鼻咽癌患者生存率偏低的主要原因。近 Radiation therapy is the standard treatment for nasopharyngeal carcinoma. However, since most patients are already diagnosed locally advanced or advanced stage of radiotherapy, the 5-year survival rate of these patients after radiotherapy alone has been hovering in spite of the improvement of radiotherapy equipment and irradiation technology in recent years Between 50% and 60% [1]. The distant recurrence and metastasis without local recurrence accounted for 74% of the total recurrence, which is also the main reason for the low survival rate of locally advanced NPC. near