Tracheostomy and venovenous extracorporeal membrane oxygenation for difficult airway patient with carinal melanoma: A case report and literature review

Figure 2 Preoperative flexible bronchoscopy images of patient. A: Carinal level; B: Left main bronchus; C: Right main bronchus. These bronchoscopy images show a large, black-pigmented, protruding mass is evident at the carinal level (A), causing near-total occlusion of the left main bronchus (B) and partial occlusion of the right main bronchus (C).