Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The lungs appear hyperinflated . Upper lobe lucency may reflect emphysema . No large effusion or pneumothorax is seen . Heart size is top normal . Aorta is unfolded . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
COPD / emphysema , top - normal heart size , otherwise unremarkable .