Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Midline sternotomy wires are again noted . The lungs are hyperinflated suggestive of underlying COPD . No signs of pneumonia or CHF . No pneumothorax is seen . Heart and mediastinal contour appear normal . Bony structures appear intact . No free air is seen below the right hemidiaphragm . The reported pulmonary nodules are not clearly seen on this chest radiograph .
    OUTPUT:
    
Markedly hyperinflated lungs compatible with COPD . No signs of pneumonia or other acute superimposed process .