【关键词】 鼻咽癌 [摘要] 目的:于放疗前后检测鼻咽癌患者血清中血管内皮生长因子(vascular endothelial growth factor, VEGF)和β2微球蛋白的水平,探讨其变化及临床意义。方法:采集58例鼻咽癌患者和24名健康体检者血清,应用酶联免疫吸附法(enzymelinked immunosorbent assay, ELISA)测定VEGF水平,用时间分辨荧光免疫分析(timeresolved fluoroimmunoassay, TRFIA)方法测定β2微球蛋白水..