Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Lung volumes are low with bronchovascular crowding likely accounting for the subtle opacities in the lower lungs . The lungs are otherwise clear . No effusion or pneumothorax . The cardiomediastinal silhouette is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Limited , negative . Crowding of bronchovasculature likely accounts for the subtle lower lung opacities .