Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size remains mildly enlarged , and apparent decrease in size is likely due to differences in technique and inspiration . The aorta remains tortuous . A vascular stent is again noted projecting over the right subclavian region . Pulmonary vasculature is not engorged . Lungs are clear . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .