多原发恶性肿瘤近年来报道逐渐增多,其治疗效果与单原癌相比,预后未必很差,如双原发乳癌术后五年生存率仍达56%(Moertel 1961),但由于临床医生对其认识不足,多误诊为复发、转移或晚期而放弃采取积极治疗手段,影响疗效。现将我院1968～1982年收治的多原发恶性肿瘤20例报告如下; 临床资料:本组20例均经我院临床诊疗.病 Many primary malignancies have been reported in recent years, and their therapeutic effects are not necessarily worse than those of single cancers. For example, the five-year survival rate of dual primary breast cancer after surgery is still 56% (Moertel 1961), but due to clinicians Insufficient awareness of them, misdiagnosis as recurrence, metastasis or lateness and give up active treatment means affect the efficacy. Now 20 cases of multi-primary malignancies admitted to our hospital from 1968 to 1982 are reported as follows: Clinical data: 20 cases in this group were diagnosed and treated by our hospital.