多发性原发性癌(以下简称MPC)是指同一宿主的单个或多个器管组织发生两个以上的原发癌瘤而言。近年来MPC发病率不断增高,国内外对此已有较多的报导。MPG的治疗与转移、复发癌瘤的治疗有原则性区别,特别是“先后”发生的癌肿临床上常疑为第一癌瘤的转移 Multiple primary cancer (hereinafter abbreviated as MPC) refers to the occurrence of more than two primary cancers in single or multiple organelles of the same host. In recent years, the incidence of MPC has continuously increased, and there have been many reports at home and abroad. MPG treatment and metastasis, the treatment of recurrent cancer tumors are principled differences, especially the “successive” occurrence of cancer is often suspected as the first cancer metastasis