大肠恶性肿瘤临床误诊率高达40～70％。临床误诊通常包括两个方面:其一是将大肠良性疾病误诊为恶性肿瘤,从而扩大了手术的范围。其二是将大肠恶性肿瘤长期按良性疾病治疗,延误了手术的时机。为了提高大肠恶性肿癌早期诊断的准确性,特将我院三十年来经手术治疗、有病理诊断、资料完整可供分析的病例进行一次回顾性总结。 The clinical misdiagnosis rate of colorectal malignancies is as high as 40-70%. Clinical misdiagnosis usually includes two aspects: One is misdiagnosing benign diseases of the large intestine as malignant tumors, thereby expanding the scope of surgery. The second is the long-term treatment of colorectal malignancies by benign diseases, which delays the timing of surgery. In order to improve the accuracy of early diagnosis of colorectal malignancy, we retrospectively reviewed the cases of surgical treatment, pathological diagnosis, and data available for analysis in our hospital for the past 30 years.