重复癌又称多原发癌,指同一宿主在同一器官或成对器官,同一系统的不同部位以及不同器官,同时或先后发生的2个或2个以上的原发恶性肿瘤。按发生脏器数,可称为二重癌、三重癌。现阶段重复癌的发生越来越多,但多数都是二重癌、三重癌,四重癌的发生极为罕见,现将我科收治的1例四重 Repeat cancer, also known as multiple primary cancer, refers to the same host in the same organ or paired organs, different parts of the same system and different organs, simultaneously or successively occurred in two or more than two primary malignant tumors. According to the number of organs, can be called double cancer, triple cancer. Repeat the occurrence of cancer at this stage more and more, but most are double cancer, triple cancer, the occurrence of quadruple cancer is extremely rare, now we receive a case of quadruple