Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded suggestive of COPD . Otherwise the lungs are clear . There is no pleural effusion or pneumothorax . The aorta is tortuous . The cardiomediastinal silhouette is otherwise unremarkable .
    OUTPUT:
    
Hyperexpanded lungs suggestive of COPD . No focal consolidation .