多发性原发癌(MPC)又名重复癌。近年来,其发生率有所增加,鉴于一般基层医务人员对其尚缺乏了解,现简介如下: 诊断标准:关于MPC的诊断标准,早在1889年Billroth氏提出,1.各肿瘤有其独自的组织学形态;2.各肿瘤分离并位于不同器官;3.各肿瘤有其独自的转移途径。1932年Warren等作了些修改,认为1.各肿瘤必须是恶性;2.各肿瘤必须在互不相连的部位;3.各肿瘤均不为他瘤所转移而来。目前,各国多以后者为基准,或作些补充。我国刘复生等提出MPC的诊断标准为;1.每个肿瘤均为恶性;2.肿瘤发生在不 Multiple primary cancer (MPC) is also known as duplication of cancer. In recent years, the incidence has increased. Given the lack of understanding of basic medical personnel in general, the following is a brief description: Diagnostic Criteria: Diagnostic criteria for MPC, as early as in 1889 Billroth’s proposed, 1. Each tumor has its own Histological morphology; 2. The tumors are isolated and located in different organs; 3. Each tumor has its own unique route of metastasis. In 1932, Warren et al. made some changes, that 1. each tumor must be malignant; 2. each tumor must be in separate sites; 3. each tumor is not transferred from his tumor. At present, many countries use more people as benchmarks, or make some additions. China’s Liu Fusheng put forward the diagnostic criteria for MPC as follows: 1. Each tumor is malignant; 2. Tumor occurs in