- irregular circumferential thickening of mid to distal tracheal and extending into left mainstem bronchus, with more mass-like component at the level of carina
- the tracheobronchial lesion causes severe airway narrowing, and the left lung has a diffusely lucent appearance, suggestive of mild air trapping
- no evidence of involvement of other adjacent mediastinal structures, including esophagus or greater vasculature. No lymphadenopathy or suspicious pulmonary nodule
- Diffuse ground glass opacities of the right lower lung are nonspecific and may indicate atelectasis