Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated , without focal opacities . Scattered areas of scarring and subsegmental atelectasis are redemonstrated and unchanged from prior exam . There is no pleural effusion or pneumothorax . Cardiomediastinal and hilar contours are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .