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同一宿主同时或先后发生两个以上的原发癌称多原发癌。鼻咽癌多原发癌少有报道。1981～1987年6年中我们发现6例,现予以报道。 一、临床资料 本组6例,男2例。女4例;年龄35～54岁。同时发生第二原发癌的1例,为鼻咽部低分化鳞状上皮癌伴左中耳高分化鳞状上皮癌。另5例均为放射治疗后发生第二原发癌,计有:鼻咽部低分化鳞状上皮癌,半年后发生软腭粘液表皮样癌1例;1年
Two or more primary cancers were more than one primary cancer at the same time or in the same host. Many primary cancers of nasopharyngeal carcinoma are rarely reported. During the six years from 1981 to 1987, we found 6 cases and report them now. First, clinical data in this group of 6 cases, 2 males. 4 females; aged 35 to 54 years old. At the same time, one case of the second primary cancer was a poorly differentiated squamous cell carcinoma of the nasopharyngeal with a well-differentiated squamous cell carcinoma of the left and middle ear. The other 5 cases were all secondary cancers after radiotherapy, including: poorly-differentiated squamous cell carcinoma of the nasopharynx; six months later, 1 case of soft palate mucoepidermoid carcinoma; 1 year