Endobronchial Ultrasound-guided Transbronchial Needle Aspiration for Lymph Node Staging in Patients With Non-small Cell Lung Cancer Pursuing Stereotactic Body Radiotherapy (SBRT)

Currently EBUS-TBNA is performed in patients with CT and/or PET positive lymph nodes in the mediastinum or hilum. In this study, all patients being considered for SBRT will undergo EBUS-TBNA for the lymph node staging prior to SBRT.