Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal dance lateral views of the chest . Tracheostomy and left chest wall port are in stable positions . There is no evidence of a new consolidation nor effusion . Cardiomediastinal silhouette is normal . Osseous structures are unremarkable . Prominent gaseous distention of the colon and stomach is again noted .
    OUTPUT:
    
No evidence of pneumonia .