Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . Coronary artery calcifications are re- demonstrated . The aorta remains tortuous with atherosclerotic calcifications again noted at the arch . Hilar contours are unremarkable . The pulmonary vasculature is normal . Lung volumes are low with no focal consolidation demonstrated . No pleural effusion or pneumothorax is seen . Mild degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .