多原发恶性肺瘤,称重复癌。是指同一器官组织或成对器官组织中,同系统不同部位不同系统器官发生的,两者互不联系非他处转移者。随着恶性肿瘤诊断水平的不断提高,肿瘤患者寿命的普遍延长,因而发生乡原癌的机会也增加。我院近年来收集三例,经病理证实,报告如下: Multiple primary malignant tumors are called repeat cancers. It refers to the occurrence of different organ systems in the same organ tissue or paired organ tissue in different parts of the system, and the two are not linked to other metastases. With the continuous improvement of the diagnostic level of malignant tumors, the life expectancy of cancer patients has generally been extended, and the chance of developing primary cancer in townships has also increased. In recent years, our hospital has collected three cases, confirmed by pathology, the report is as follows: