Fig. 2

Pathological findings. a Bronchoscopy findings of a relatively well-defined, smooth tumor that fully occluded the lumen of the lateral segmental bronchus of the right lower lobe (B⁹). b Macroscopic examination of the right basal segmental specimen showing that the bronchial tumor originated from the entrance of the lateral segmental bronchus of the right lower lobe (B⁹). c Microscopically, the tumor lay inside the bronchial cartilage and d consisted principally of mature adipose tissue