Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Atherosclerotic calcifications are demonstrated at the aortic knob . Mediastinal and hilar contours are normal . Lungs are hyperinflated with attenuation of vascular markings towards the apices suggestive of mild emphysema . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Mild emphysema .