The result indi-cates that the expression of HLA-D/Dr antigen can be used as an axiliary indexfor malignant change of nasopharyngeal epithelium.

• 癌变上皮的D/Dr抗原强阳性反应与癌旁上皮形成强烈对照,提示D/Dr抗原的表达可做为鼻咽上皮癌变的参考指标。