Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Coronary artery stents are re- demonstrated . Mediastinal and hilar contours are within normal limits and unchanged . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . Multilevel degenerative changes are present within the thoracic spine with anterior osteophyte formation .
    OUTPUT:
    
No acute cardiopulmonary abnormality .