Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Lungs appear hyperinflated with upper lobe lucency . Hilar prominence is stable with subtle perihilar opacities slightly improved from prior . No large effusion or pneumothorax is seen . Cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
Stable hilar prominence with mild perihilar opacities , slightly improved from prior . No pneumothorax .