目的:探讨青年人肺癌的误诊原因及早期诊断中应注意的问题,提出相应对策,以期提高青年人肺癌的早期确诊率。方法:对我院2002/2007年临床误诊的34例40岁以下青年人肺癌进行回顾性分析。结果:34例误诊患者占同期青年人肺癌患者的61.8%。误诊疾病分别为肺炎、肺结核、支气管扩张、肺脓肿、结核性胸膜炎、类风湿性关节炎、内分泌失调症。结论:青年人肺癌误诊率高,误诊原因复杂,未分化癌占大多数,恶性程度高,预后差。 Objective: To investigate the causes of misdiagnosis of young lung cancer and the problems to be noticed in the early diagnosis, and to put forward corresponding countermeasures in order to improve the early diagnosis of lung cancer in young people. Methods: A retrospective analysis was performed on 34 lung cancer patients under 40 years of age who were misdiagnosed from 2002 to 2007 in our hospital. Results: 34 cases of misdiagnosed patients accounted for 61.8% of young patients with lung cancer over the same period. Misdiagnosed diseases were pneumonia, tuberculosis, bronchiectasis, lung abscess, tuberculous pleurisy, rheumatoid arthritis, endocrine disorders. Conclusion: Young people have high misdiagnosis rate of lung cancer, complicated cause of misdiagnosis, undifferentiated carcinoma, malignant degree and poor prognosis.