鼻咽癌的诊断,像其他恶性肿瘤一样,目前仍依赖于临床体征,X 线检查、局部活检,脱落细胞涂片等方法,而且应用这些方法所确诊的患者癌肿多已至中晚期。近年来,为了探索鼻咽癌的早期诊断,人们根据新近关于 EB 病毒可能是鼻咽癌的重要致癌因子这一学说,应用间接免疫萤光试验,测定病人血清中 EB 病毒免疫球蛋白G 和 A(IgG 和 IgA)抗体;利用免疫 The diagnosis of nasopharyngeal carcinoma, like other malignant tumors, still relies on clinical signs, X-ray examination, local biopsy and exfoliated cell smears, and the cancer patients diagnosed by these methods have reached the advanced stage. In recent years, in order to explore the early diagnosis of nasopharyngeal carcinoma, people according to the recent EB virus may be an important carcinogenic factor of nasopharyngeal carcinoma theory, the application of indirect immunofluorescence assay to determine the serum of patients with Epstein-Barr virus immunoglobulin G and A (IgG and IgA) antibodies; using immunization