Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The aorta is slightly unfolded . The hilar contours are normal . The pulmonary vascularity is not engorged and the lungs are clear . No pleural effusion or pneumothorax is visualized . No acute osseous abnormalities are present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .