肺球形肿块的鉴别诊断,首先以X线检查为基础区别癌、结核瘤和良性肿瘤(特别是错构瘤)。作者根据对126例直径小于3cm的球形肿块患者进行了肺癌(65例)、结核瘤(30例)和错构瘤(31例)的X线特征的对比分析。年龄19～82岁,以41～60岁居多数。在肺癌(57/65)和结核瘤(25/30)患者中男性占多数,错构瘤(17/31)则不明显。 Differential diagnosis of pulmonary spondylolysis, the first to X-ray examination based on the difference between cancer, tuberculosis and benign tumors (especially hamartoma). The authors performed a comparative analysis of X-ray features of lung cancer (65 cases), tuberculoma (30 cases) and hamartoma (31 cases) based on 126 patients with spherical masses less than 3 cm in diameter. Age 19 to 82 years old, 41 to 60-year-old majority. Men were predominant in lung cancer (57/65) and tuberculoma (25/30), with hamartomas (17/31) insignificant.