Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided central venous catheter terminates just below the cavoatrial junction . The cardiomediastinal and hilar contours are within normal limits and stable . The heart is normal in size . Scattered opacities in both lungs are improved from the prior study . No pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Bilateral parenchymal opacities are improved from the prior study , consistent with improving pulmonary edema .