Fig. 3

Intraoperative Bronchoscopy Findings. a: Preoperative: New growth in the lumen of the right main bronchus, completely obstructing the lumen. b: Intraoperative: Tumor removal using electrocautery snare, CO2 cryotherapy, argon knife, and high-frequency electric cautery. c: Postoperative: Significant widening of the middle section of the right bronchial lumen, with exposure of the openings of the right upper lobe and right middle lobe; the opening of the right lower lobe remains completely obstructed by the tumor