AFB autofluorescence bronchoscopy APC argon plasma coagulation BAL bronchoalveolar lavage COPD chronic obstructive pulmonary disease CT computed tomography EBUS endobronchial ultrasound EDAC excessive dynamic airway collapse ENT ear, nose and throat EUS endoscopic ultrasound FEV1 forced expiratory volume in 1 s HRCT high-resolution CT ILD interstitial lung disease NBI narrow band imaging OCT optical coherence tomography PDT photodynamic therapy PET positron emission tomography RFA radiofrequency ablation SBRT stereotactic body radiation therapy SEMS self-expandable metallic stents TBB transbronchial biopsy TBLB transbronchial lung biopsy TBNA transbronchial needle aspiration VATS video-assisted thoracoscopic surgery List of abbreviations