Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Lung volumes are low . Increased opacity is seen at the lung bases which is concerning for atelectasis or pneumonia . No pneumothorax or effusion . Cardiomediastinal silhouette is normal . Bony structures are intact .
    OUTPUT:
    
Lower lung opacities which may reflect atelectasis or pneumonia .