【摘要】 目的　探讨多原发性肺癌特点。方法　检索 1981年 1月～ 1999年 6月在我院手术治疗的肺癌病人46 38例 ,其中 31例病理确诊为多原发性肺癌 ,占 0 .6 7%。结果　 31例中第一、二原发肺癌以 5 0～ 6 5岁发病率最高 ,分别占 6 4.5 %和 6 8.2 %。 6 4个原发癌中鳞癌占 5 4.7%。同时癌、异时癌、同时异时癌分别占 2 9%、6 4.5 %及6 .5 %。X线显示 :6 4个原发癌以周围型多见 ,占 71.9%。 ～ 期为 84.4%。异时癌第二原发癌术后 5年生存率占 2 2 .7% (5 / 2 2 )。结论　多原发性肺癌易发生于老年人 ,病变多为早期 ,鳞癌多见 ,第二原发癌术后 5年生存率低。更多还原

【Abstract】 Objective To research the properties of multiple primary lung cancer.Methods In 4 638 cases of lung cancer patients operated in our hospital from 1981 to 1999,31 cases (0.67%) suffered from multiple primary lung cancer which was proved by pathologic evidence.Results Patients 50～65 years old had the highest incidence of the first and second cancer with the rate of 64.5% and 68.2% respectively.Squamous carcinoma was account for 54.7% of the 64 primary cancers.The rate of synchronous cancer was 29%,metachronous cancer was 64.5%, and the combination of both were 6.5%.On X ray,most cancers were peripheral type with a rate of 71.9%. The rate of stage Ⅰ and Ⅱ were 84.4%.The five year survival rate was 22.7% (5/22) after second operation in coexisted cancer group.Conclusions Multiple primary lung cancers are mostly found in the aged,and usually in early stages.The squamouse carcinoma is more common.The five year survival rate is low after second operation in coexisted cancer group.更多还原