Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest film dated ___ at 18 21 is submitted .
    OUTPUT:
    
The nasogastric tube remains in place but only can be seen to the level the mid esophagus and therefore the positioning can not be assessed on this image . A right internal jugular central line continues to have its tip in the proximal right atrium . There has been slight interval improvement in lung volumes with residual patchy opacities in both upper lobes and in the left retrocardiac region . These findings would be concerning for pneumonia , less likely pulmonary edema given the distribution . Clinical correlation is advised . There is slight improved aeration at the right lung base . Overall cardiac and mediastinal contours are stable . No pneumothorax .