本文分析我科自1980年1月至1988年12月收治的77例老年肺癌。其误诊原因为:对肺癌的早期症状未予重视,对以非呼吸道首发的临床表现缺乏警惕,对肺癌不典型的X线征象未行进一步周密检查,对肺癌的肺外表现认识不够,误诊时间短者25 This article analyzes 77 elderly lung cancer patients admitted to our department from January 1980 to December 1988. The reasons for misdiagnosis are: not paying attention to the early symptoms of lung cancer, lack of vigilance on the clinical manifestations of non-respiratory first, lack of further careful examination of the typical X-ray signs of lung cancer, poor understanding of the extra-pulmonary manifestations of lung cancer, and misdiagnosis time Short 25