[研究背景 ]盲肠癌合并阑尾炎的病例较少见 ,临床上因对阑尾炎病人缺乏耐心而忽视盲肠肿物的病症 ,容易导致漏诊 ,影响病人治疗 .[病例报告 ]本文报道 3例 ,接诊时均误诊为阑尾炎 ,行阑尾切除术 ,后行右半结肠切除术 .[讨论 ]对阑尾炎的病人 ,如在术中发现不符合阑尾炎的表现时 ,应探查盲肠及部分升结肠 ,术后一定要送检阑尾做病理检查 ,以防漏诊 . [Background] The incidence of appendicitis with cecal cancer is relatively rare, and the clinical failure of patients with appendicitis to ignore the symptoms of caecal masses easily leads to missed diagnosis and affects the patient’s treatment. [Case Report] Three cases were reported, Were misdiagnosed as appendicitis, line appendectomy, right colon resection. [Discussion] Appendicitis patients, such as found in the operation does not meet the appendix’s performance, should explore the cecum and part of the ascending colon, postoperative must Submit the appendix for pathological examination to prevent missed diagnosis.