Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged . The aortic knob demonstrates dense atherosclerotic calcifications . Mediastinal and hilar contours are otherwise unchanged . The pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is visualized . There are mild degenerative changes in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .