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本文就作者1964年3月至1979年12月19023例鼻咽癌放疗后随诊中并发其他原发癌49例(50个癌)进行了分析。其他原发癌的出现率为257.6/10万,为同地区正常人群普查癌瘤患病率的两倍。其中,并发的舌癌出现率为63.1/10万,为同地区正常人群普查的舌癌患病率(0.79/10万人口)的80倍,并发其他原发癌在鼻咽癌放疗后2年以上出现者32例(64％)占多数,间胚叶来源的恶性肿瘤出现较迟,多在放疗后5年以上,鼻咽癌放疗后出现头颈部其他癌瘤可能是放射源性的,值得引起注意。
In this article, the author analyzed 49 cases (50 cancers) of other primary cancers following follow-up radiotherapy of nasopharyngeal carcinoma from March 1964 to December 1979. The incidence of other primary cancers was 257.6 per 100 000, which was twice the prevalence of screening tumors in the normal population in the same region. Among them, the incidence of concurrent tongue cancer was 63.1/10 million, which was 80 times the prevalence of tongue cancer (0.79 per 100,000 population) in the normal population in the same region, and other primary cancers were 2 years after radiotherapy for nasopharyngeal carcinoma. 32 cases (64%) were present in the majority of the above cases. Malignant tumors originating from the mesenchymal leaves appeared later, more than 5 years after radiotherapy, and other cancers of the head and neck after radiotherapy of nasopharyngeal cancer may be radioactive. Worthy of attention.