多源发癌又称重复癌。国内近年来报道的88339例恶性肿瘤中,多源发癌有449例,占0.51％,较国外(10.6％)为低。449例多原发癌中,二重癌418例(93.1％),三重癌28例(6.2％),四重癌3例(0.7％)。我院近年来发现二例,一例二重癌,一例三重癌,现报告如下。 病例1,男,57岁,因间歇性上腹部胀痛廿余年,加重一个月于1979年11月入院。患者于1953年始时有上腹胀痛;1975年经胃镜检查诊断为“表浅萎缩性胃炎伴肠上皮化生”。1979年10月 Multiple sources of cancer, also known as repeat cancer. Among the 88,339 malignancies reported in recent years in China, 449 cases were multi-source cancers, accounting for 0.51%, which was lower than that in foreign countries (10.6%). Of the 449 cases of multiple primary cancers, 418 (93.1%) were secondary cancers, 28 (6.2%) were triple cancers, and 3 (0.7%) were quadruple. Our hospital has discovered two cases in recent years, one case of double cancer and one case of triple cancer. The report is as follows. Case 1, male, 57 years old, admitted to hospital in November 1979 due to intermittent upper abdominal pain for more than one year. The patient had epigastric pain at the beginning of 1953; in 1975, he was diagnosed as having superficial atrophic gastritis with intestinal metaplasia by gastroscopy. October 1979