肺癌列为“与不良生活习惯有关、危害人类健康最严重的疾病”之一，目前认为“遗传因素”也不能不认真考虑。但一家同代三例发病，且均以转移癌为首发表现者，实属少见。现将我院诊治的病例报告如下。例１，首诊者男性，６７岁。１９９９０２不慎摔倒，就近医院检查，右股骨 Lung cancer is listed as one of the “most serious diseases that are related to bad living habits and endanger human health.” At present, “genetic factors” cannot be ignored. However, it is rare that one of the three generations of the same generation had onset and metastasis was the first performer. The cases reported by our hospital are now reported as follows. In case 1, the first patient was a male, 67 years old. 1999-02 accidentally fell to the nearest hospital, right femur