Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are hyperinflated with upper lobe lucency and splaying of bronchovasculature compatible with emphysema . There is no focal consolidation to suggest the presence of pneumonia . No effusion or pneumothorax . No signs of congestive heart failure . The heart and mediastinal contours are normal . Bony structures are intact . No free air is seen below the right hemidiaphragm .
    OUTPUT:
    
COPD without superimposed pneumonia .