摘要
（目的）提高青年期大肠癌诊断水平，减少误诊，改善预后。（方法）自1988年5月至1997年12月，对诊断的96例35岁以下的大肠癌患者作回顾性分析。（结果）96例中62例误诊。误诊率高达64．58％，误诊时间7天～18个月。误诊中以菌痢、痔疮、肠炎为最常见。（结论）青年期大肠癌误诊率高，误诊原因主要是医源性因素。
[Purpose] To increase the diagnostic accuracy, decline the incidence of misdiagnosis, and improve the prognosis forcolorectal carcinorna in the youth. [Methods] From May 1988 to December 1997, 96 patients less than 35 years old with colorectalcarcinotna received in our hospital were analysed retrospectively. [Results] Sixty-two of 96 cases were misdiagnosed. The misdiag-nosis rate was 64. 58%. The misdiagnostic period was from 7 days to 18 months. They were of ten msdiagnosed as bacillary dysen-tery, hemorrhoid, enteritis. [Conclusion] The misdiagnostic rate for colorectal carcinorna in the youth was very high, and themain cause of misdiagnosis was iatrogenic factors.
