目的 :探讨肺癌肺外表现对早期诊断肺癌的价值。方法 :对 2 7例病理确诊为原发性肺癌患者的非转移性肺外症状体征进行临床分析。结果 :2 7例中以肺外症状就诊 12例 ,其中误诊 9例。肺外症状主要表现为杵状指 14例 ,肺性骨关节病 5例 ,癌性神经肌病 3例 ,男性乳房发育 2例 ,异位ADH综合征 2例 ,血栓症 1例。同一病例可具多样表现。结论 :肺癌的肺外表现常先于肺部症状或早于X线表现 ,具有一定的早期诊断价值。 Objective: To explore the value of extrapulmonary manifestations of lung cancer in the early diagnosis of lung cancer. Methods : Clinical analysis of non-metastatic extrapulmonary symptoms and signs in 27 patients with pathologically diagnosed primary lung cancer. RESULTS: Twenty-seven patients with extrapulmonary symptoms were diagnosed in 27 cases, of which 9 cases were misdiagnosed. The extrapulmonary symptoms mainly included 14 cases of clubbing, 5 cases of pulmonary osteoarthropathy, 3 cases of cancerous neuromuscular disease, 2 cases of male breast development, 2 cases of ectopic ADH syndrome, and 1 case of thrombosis. The same case can have multiple manifestations. Conclusion : The extrapulmonary manifestations of lung cancer are often preceded by pulmonary symptoms or earlier than X-ray findings and have certain early diagnostic value.