Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size appears mildly enlarged but unchanged . A coronary artery stent is again noted . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . Moderate degenerative changes with anterior osteophytes are seen in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .