Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is diffusely calcified . The mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is detected . There are no acute osseous abnormalities . Moderate multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .