Abstract:Objective To evaluate the diagnostic value of endobronchial ultrasound-transvascular needle aspiration (EBUS-TVNA) in hilum of lung and mediastinal lesions.Methods 10 cases of hilum of lung and mediastinal lesions who underwent EBUS-TVNA because vessels pass between the airway and lesions were selected from June 2021 to January 2023, the diagnostic rate and complications were retrospectively analyzed.Results Of the 10 patients, 8 traversed the pulmonary artery or its branches, 2 traversed aorta or superior vena cava. Specimens were successfully obtained from all patients and 8 of them got definitive diagnosis, including 6 malignancy and 2 benign lesions. The overall yield of EBUS-TVNA for hilum of lung and mediastinal lesions was 80.0% (8/10), the diagnostic sensitivity for malignancy was 85.7% (6/7), and the diagnostic specificity was 100.0% (3/3). The other 2 cases were not diagnosed,1 was diagnosed as bladder urothelial carcinoma by percutaneous lung puncture biopsy, and the other was classified as benign due to the reduced lesion after 6 months of follow-up. All of them had good tolerance to the operation, and no serious complications occurred.Conclusion EBUS-TVNA is a safe and effective technique for the diagnosis of hilum of lung and mediastinal lesions, it can be used as an effective auxiliary method to traditional ultrasound bronchoscopy techniques.