Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest are provided . The lung volumes are low . Bronchovascular crowding likely accounts for the subtle reticular opacities in the lower lungs . The cardiomediastinal silhouette is stable . Bony structures are intact . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Limited , negative .