Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with flattening of the diaphragms . Lungs are clear . No pleural effusion or pneumothorax . There is stable mild cardiomegaly . Mediastinal contour and hila are unremarkable . A left chest wall pacer device lead tips are again noted to be in the right atrium and right ventricle .
    OUTPUT:
    
1 . Findings suggestive of COPD or emphysema . 2 . Stable mild cardiomegaly .