Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left subclavian central venous catheter tip terminates in the proximal right atrium . The heart is mildly enlarged . Aorta is unfolded . The pulmonary vascularity is normal and hilar contours are within normal limits . The lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are seen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .