Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The aorta is mildly tortuous . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . Anterior flowing osteophytes are noted in the thoracic spine compatible with DISH . No subdiaphragmatic free air is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality .