Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Overlying EKG leads are present . Severe background emphysema is evident with hyperinflation and lucent appearance of the chest with scattered areas of scarring . Blunting of the CP angles bilaterally likely reflect small pleural effusions . The heart is mildly enlarged . Mediastinal contour is normal . No convincing signs of pneumonia or edema . No pneumothorax . Bony structures are intact .
    OUTPUT:
    
Severe COPD without superimposed pneumonia . Tiny pleural effusions .