Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided demonstrate a dual - lead pacemaker with leads extending into the region of the right atrium and right ventricle , unchanged and intact in appearance . The lungs appear clear and hyperinflated with upper lobe lucency and flattened diaphragms suggesting underlying emphysema . No signs of pneumonia or CHF . Cardiomediastinal silhouette is stable and normal . No acute bony abnormalities are seen . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute findings in the chest .