Fig. 1From: Clinical outcomes of radial probe endobronchial ultrasound using a guide sheath for diagnosis of peripheral lung lesions in patients with pulmonary emphysemaRepresentative case of EBUS-GS in a patient with severe pulmonary emphysema. a and b A 31 × 37 mm cavitary lesion in the right lower lobe is shown on axial and coronal computed tomography scans of a patient with severe emphysema. Because of the advanced lung destruction around the tumor (black arrow), it was impossible to perform percutaneous needle aspiration for a histological examination. c Radial probe EBUS shows “within the lesion” status. d A transbronchial lung biopsy was performed under fluoroscopic guidance, and squamous cell carcinoma was diagnosed. EBUS-GS, endobronchial ultrasound using a guide sheathBack to article page