多原发癌是指同一患者单个或多个脏器同时(半年内)或先后(半年以上)发生的多种原发癌,临床较少见。我们遇到1例四种原发癌,报告如下。患者男,52岁,于1983年12月因腹痛在河南省肿瘤医院就诊。钡剂造影诊断为回盲部结肠癌,并在该院手术治疗。术后病理为:升结肠浸润型腺癌,累及肠管全周,侵润肌层,淋巴结转移0/14。1985年5月因进食后 Multiple primary cancers refer to multiple primary cancers occurring in the same patient at the same time (within six months) or successively (more than six months). We encountered one case of four primary cancers, as reported below. The patient, male, 52 years old, was diagnosed with abdominal pain in Henan Provincial Tumor Hospital in December 1983. The barium angiography was diagnosed as ileocecal colon cancer and was treated surgically in this hospital. Postoperative pathology: ascending colonic infiltrating adenocarcinoma, involving the entire bowel, infiltrating muscularis, lymph node metastasis 0/14. May 5, 1985 after eating