Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is slightly unfolded . The mediastinal and hilar contours otherwise are unremarkable . There is minimal atelectasis in the lung bases . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .