Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size appears mildly enlarged but unchanged . Atherosclerotic calcifications are noted at the aortic knob . Mediastinal and hilar contours are similar . Pulmonary vasculature is not engorged . Interstitial opacities are noted within the lung bases , more so on the right , which could reflect atelectasis and scarring . No focal consolidation , pleural effusion or pneumothorax is present . Chronic left - sided rib deformities are re - demonstrated .
    OUTPUT:
    
No acute cardiopulmonary abnormality .