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多原发癌又称重复癌 (ＭｕｌｔｉｐｌｅＰｒｉｍａｒｙＣａｒｃｉ ｎｏｍａ ,ＭＰＣ) ,是指同一器官或系统不同部位 ,同时或先后发生两个或两个以上原发癌病灶。全身各处均可发生。目前国内对于重复癌的诊断仍沿用Ｗａｒｒｅｎ[1] 等的诊断标准 :都是恶性肿瘤 ;都不是转移癌 ;
Multiple primary cancer, also known as multiple primary carcinoma (MPC), refers to the occurrence of two or more primary cancer lesions simultaneously or sequentially in different parts of the same organ or system. It can happen everywhere in the body. At present, the diagnosis of repeated cancers in China still follows the diagnostic criteria of Warren [1]: They are all malignant tumors; they are not metastatic cancers;