The application of cervical mediastinoscopy in diagnosis of lung canner

Objective:To explore the application value and summarize the clinical experience of mediastinoscopy examination in the diagnosis of lung cancer. Methods: 258 patients cases of initial diagnosis or suspected diagnosis of lung cancer were done mediastinal lymph node biopsy with mediastinoscopy . Then the specimens were sent to pathology, a clear diagnosis of disease would be made according to the pathological report. Results:Of the 258 lung cancer patients diagnosed or diagnosed doubtfully, 245 patients were diagnosed definitely by mediastinoscopy,accurate rate was 95.0% (245/258). of the 67 lung cancer patients with definite diagnosis,the mediastinal lymph nodes of 49 patients were metastesis and no metastasis nodes in the others ,the positive rate of CT was 73.1% (49/67); In the 72 preoperative patients diagnosed as malignant tumor doubtfully , 41 cases of malignant tumors (24 cases of lung cancer, 17 cases of mediastinal malignant tumor),25 cases of benign disease, 6 cases of unexplained diagnosis were confirmed by postoperative pathology. Preoperative diagnostic accuracy was 56.9% (41/72); In the 119 preoperative patients cases diagnosed as benign disease , 104 cases of benign disease (74 cases of sarcoidosis, 15 cases of mediastinal lymph node tuberculosis, 15 cases of mediastinal lymphadenitis), 8 cases of malignant diseases (lung cancer) , 7 cases of unknown diagnosis were confirmed by postoperative pathology. Preoperative diagnostic accuracy was 87.4% (104/119). Conclusion:The mediastinoscopy is an accurate, safe, reliable and effective method in the lung cancer diagnosis and preoperative staging of lung cancer.