Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is mildly enlarged with tortuosity of the thoracic aorta . The hilar contours are unremarkable . The lungs are mildly hyperinflated , but are otherwise clear without focal consolidation . Pleural surfaces are clear without effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Mild hyperinflation .