Anatomically, there were 12 cases with mediastinal tumor, succeeded in 11, 8 cases with mediastinal lung cancer, succeeded in 7. The statistical analysis was no significance.
纵隔肿瘤12例，纵隔型肺肿瘤8例，活检成功分别为11例和7例。两者无统计学意义。
2
ResultsThe tumor included 4 invasive thymoma, 5 thymic cancer, 2 primary mediastinal small cell carcinoma.
结果侵袭性恶性胸腺瘤4例，胸腺癌5例，纵隔小细胞癌2例。
3
Objective: To investigate the value of cervical mediastinoscopy in the diagnosis of mediastinal diseases and the staging of lung cancer before operation.