肺癌的临床表现复杂 ,有原发肿瘤、胸内蔓延、远处播散引起的症状和非转移性肺外表现 ,后者可出现在发现肿瘤之前、之后或同时。有时仅肺外表现为首发症状 ,呼吸道症状缺如 ,易造成误诊。为加强这方面的认识 ,回顾分析 1978年1月～ 1998年 12月我院收治的 2 98例肺癌病人的临床 The clinical manifestations of lung cancer are complex, with primary tumors, intrathoracic spread, symptoms caused by distant dissemination, and non-metastatic extrapulmonary manifestations, which can occur before, after, or simultaneously with the discovery of a tumor. Sometimes only pulmonary manifestations as the first symptom, lack of respiratory symptoms, easily lead to misdiagnosis. To strengthen this understanding, retrospective analysis of January 1978 ~ December 1998 admitted to our hospital in 98 cases of lung cancer patients