Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The lungs are hyperinflated with widened AP diameter of the chest and flattened diaphragms suggestive of underlying COPD . There is no focal consolidation , effusion , pneumothorax . Right apical pleural parenchymal scarring is again noted . Cardiomediastinal silhouette is normal . Bony structures appear intact . IVC filter partially imaged in the upper abdomen .
    OUTPUT:
    
COPD without superimposed pneumonia .