Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . The lungs appear clear though there is upper lobe lucency and splaying of bronchovasculature , compatible with emphysema . Previously noted pulmonary edema has significantly resolved with minimal residual interstitial edema noted . No large effusion or pneumothorax . Cardiomediastinal silhouette appears normal . Bony structures appear intact .
    OUTPUT:
    
Emphysema with mild superimposed interstitial edema .