Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The aorta is mildly unfolded . The mediastinal and hilar contours are otherwise unchanged and within normal limits . The lungs are clear . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .