Risk Factors of Medistinal Metastasis in Endoscopic Staging of Lung Cancer
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The purpose of this study is to investigate risk factors for mediastinal lymph node metastasis in potentially operable non-small cell lung cancer in order to find indications for endoscopic mediastinal staging. Chest CT, integrated PET/CT, and endobronchial ultrasound guided transbronchial needle aspiration (EBUS-TBNA) +/- endoscopic ultrasound with bronchoscope-guided fine needle aspiration (EUS-B-FNA) are performed for mediastinal staging. CT and PET/CT findings, histologic types and other risk factors will be analyzed. The investigators develop the prediction method for mediastinal metastasis.
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Ages Eligible for Study:
18 Years to 80 Years (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Non-small cell lung cancer
Histologically confirmed or strongly suspected non-small cell lung cancer (NSCLC)
Inoperable T4 disease
Mediastinal infiltration or extranodal invasion of the mediastinal lymph node visible on chest CT
Confirmed supraclavicular lymph node metastasis
T1 ground glass opacity nodule (with solid part 1<cm)
Solid T1 (1<cm)N0 M0 by CT & PET/CT
Inoperable patients (after evaluating medical and surgical operability)