目的 :研究以肺外表现为首发症状的肺癌的延误诊断状况及误诊原因。方法 :回顾性分析我院近 10年来有病理或细胞学诊断的 2 0 4例肺癌病人的临床资料。结果 :32例以肺外表现为首发症状的肺癌病人均被误诊。结论 :提高对肺癌的认识和警惕性是减少误诊的重要措施。 OBJECTIVE: To investigate the delayed diagnosis and misdiagnosis of lung cancer with extrapulmonary manifestations as the first symptom. Methods: A retrospective analysis of our hospital in the past 10 years with pathological or cytological diagnosis of 204 patients with lung cancer clinical data. Results: Thirty-two lung cancer patients with pulmonary manifestations as the first symptom were all misdiagnosed. Conclusion: Increasing awareness and vigilance of lung cancer are important measures to reduce misdiagnosis.