Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . A coronary artery stent is demonstrated . Left - sided pacer is noted with leads terminating in the right atrium and right ventricle . The aorta is tortuous and diffusely calcified . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . The lungs are clear . No pleural effusion or pneumothorax is visualized . Clips in the right upper quadrant indicate prior cholecystectomy . There are mild degenerative changes noted in the thoracic spine . Sclerotic focus measuring 7 mm projects over the left first rib anteriorly .
    OUTPUT:
    
No acute cardiopulmonary abnormality .