Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacer device is noted with leads terminating in the right atrium and right ventricle . Cardiac silhouette size remains top normal . The aorta is diffusely calcified . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . There are mild - to - moderate multilevel degenerative changes noted in the imaged thoracolumbar spine .
    OUTPUT:
    
No acute cardiopulmonary abnormality .