Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperinflation with severe upper lobe predominant emphysema . No focal consolidations . Mild interstitial pulmonary edema . Stable appearance of the cardiomediastinal silhouette . No pleural effusion . No pneumothorax .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Hyperinflation with severe emphysema . 3 . Mild interstitial pulmonary edema .