Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . Bibasilar streaky opacities may represent scarring versus atelectasis . No focal opacities are identified . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Hyperinflated lungs . No evidence of pneumonia .