Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Semi-upright portable AP view of the chest obtained . Tracheostomy tube is again noted projecting over the superior mediastinum . Lung volumes are low . Increased bronchovascular markings could reflect airways inflammation . No lobar consolidation . No effusion or definite sign of pneumothorax . Cardiomediastinal silhouette is stable . Bony structures appear grossly intact .
    OUTPUT:
    
Increased bronchovascular markings could reflect bronchitis . No lobar consolidation .