Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right lower lung opacities have decreased , but remain present . Otherwise , and no significant change . Lungs remain hyperinflated . No new focal opacity . No pleural abnormality . Heart size is normal . Cardiomediastinal and hilar silhouettes are stable . Aortic calcifications are noted .
    OUTPUT:
    
Persistent , but improved right lower lung opacity .