Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . A coronary artery stent is re- demonstrated . The aorta remains tortuous and calcified , as seen previously . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . Scarring within the right apex is again noted as well as linear opacities in the left lower lobe , likely atelectasis or scarring . Lungs remain hyperinflated . No new focal consolidation , pleural effusion or pneumothorax is present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .