本文作者报告了５２８例可切除的大肠癌，有２２例同时伴有腺瘤，其中右半结肠癌伴同时性腺瘤５例，占１０％，左半结肠癌伴同时性腺瘤１７例，占３．６％，前者的发生率比后者高。癌肿伴同时性腺瘤的病人比不伴有同时性腺瘤的癌肿病人更为年长。因为癌肿伴同时性腺瘤病人系发生继时性癌肿的高危人群，故大肠癌病人术前，必须努力确定有无同时性腺瘤，术后，尤其对右半结肠癌病人更应该仔细随访。 The authors reported 528 cases of resectable colorectal cancer, 22 cases were accompanied by adenomas, including right colon cancer with communicative adenoma in 5 cases, accounting for 10%, left colon cancer with simultaneous adenoma in 17 cases, accounting for 3 In the case of .6%, the incidence of the former was higher than that of the latter. Cancer patients with simultaneous adenomas are older than cancer patients without simultaneous adenomas. Because cancer patients with concurrent adenomas are at high risk for subsequent cancers, patients with colorectal cancer must strive to determine whether there are simultaneous adenomas before operation. In particular, patients with right colon cancer should be carefully followed up.