【摘要】 作者２０年来共收治多原发性大肠癌２０例，占同期收治大肠癌患者的２．０９％（２０／９５９）。２０例中同时多原发大肠癌７例，异时多原发大肠癌１３例。同时多原发大肠癌根治术后的５年生存率为１００％（４／４），异时多原发大肠癌根治术后的５年生存率为８３．３％（１０／１２）。更多还原

【Abstract】 AbstractTwenty cases of multi-primary colorectal carcino-ma were treated in the past twenty years. The incidencewas 2.09%(20/959).Among them,seven cases hadsvnchronous carcinoma(SC) and thirteen casesmetachronous carcinoma(MC).After radical opera-tion,the 5 year survival rate of SC was 100%(4/4),and that of MC 83.3%(10/12).更多还原