Methods: Forty eight specimens with NPSC were detected by immunohistochenmical technique SP for bcl-2,bax and p53 and using terminal deoxynucleotidyl transferase mediated dUTP biotin nick end labeling (Tunel) evaluating AI.

• 方法用免疫组织化学SP法检测48例鼻咽鳞癌中bcl-2、bax和p53的表达,用TUNEL法检测鼻咽鳞癌细胞的凋亡指数。