Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs were obtained . The lungs are hyperinflated . Apical lucencies suggest emphysematous changes . Interstitial markings at the lung bases are thickened . Minimal effusion or scarring is present . Cardiac and mediastinal contours are otherwise unremarkable . Aortic arch calcifications are visualized .
    OUTPUT:
    
Emphysema . No acute cardiomediastinal process . No foreign body visualized in the airway . No radiopaque foreign body visualized in the airway .