Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged . The mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . No acutely displaced fractures are identified . Mild degenerative changes are noted in the thoracic spine with slight loss of height of several mid thoracic vertebral bodies which appear chronic .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No acutely displaced fractures are seen .