Fig. 3

Bronchoscopic examination revealed a cluster of 2–3 mm nodules along anterior tracheal wall. A Nodules were covered by intact mucosa. B Different perspective of nodules illustrating intact and normal vascularity under narrow-band imaging
Bronchoscopic examination revealed a cluster of 2–3 mm nodules along anterior tracheal wall. A Nodules were covered by intact mucosa. B Different perspective of nodules illustrating intact and normal vascularity under narrow-band imaging