Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The Swan - Ganz catheter has been replaced with a left subclavian line with the tip in the superior vena cava . There is volume loss in the lower lungs . Early infiltrate in these regions can not be excluded . There continues to be volume loss at both bases . The ET tube tip is 7 cm above the Carina . The NG tube tip is off the film , at least in the stomach .
    OUTPUT:
    
Volume loss in the lower lobes . Early infiltrate in these regions can not be excluded . No pneumothorax .