Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded , with no pleural effusion , pneumothorax , or new focal consolidation . Regions of subpleural interstitial markings are unchanged compared to the prior study . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
No evidence of pneumonia .