Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is borderline enlarged . The aorta is mildly unfolded . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . Lungs are clear . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .