重复癌是指同一体内的不同脏器原发两个以上的恶性肿瘤,据东京女子医科大学附属医院放射科的16年间统计,在7553例的恶性肿瘤中有1904例为食管癌,重复癌有76例。从第一癌确诊到第二癌期间,以不满6个月与6个月以上的分别列为同时性或异时性。作者报告同时性重复癌27例(36%),男性占大多数。异时性重复癌49例(64%)。 Duplicate cancer is defined as two or more primary malignancies in different organs in the same body. According to the 16-year statistics of the Department of Radiology, Affiliated Hospital of Tokyo Women’s Medical University, there were 1904 cases of esophageal cancer in 7353 malignancies. 76 cases. From the time when the first cancer is diagnosed to the second cancer, it is classified as either simultaneity or heterogeneity for less than six months and six months or more. The authors reported simultaneous recurrence of cancer in 27 cases (36%), with men accounting for the majority. There were 49 cases (64%) of metachronous repetitive cancers.