Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are unremarkable . There is mild calcification of the aortic arch . The lungs are clear and the pulmonary vascularity is normal . There is minimal scarring within the lung apices . No pleural effusion or pneumothorax is present . Clips are seen in the upper abdomen . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No hiatal hernia visualized .