Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . The aorta is unfolded . Mediastinal and hilar contours are normal . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . There is minimal atelectasis in the right middle lobe . No acute osseous abnormality is detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality .