Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest film dated ___ at 15 57 is submitted .
    OUTPUT:
    
There has been interval placement of a left internal jugular central line which has its tip in the mid to distal SVC . No pneumothorax . The nasogastric tube is seen again coursing below the diaphragm with the tip coiled within the stomach . There are persistent bibasilar patchy opacities with improved aeration in the right upper lung . Findings would be consistent with fluctuating pulmonary edema rather than an infectious process . Probable small layering bilateral effusions . Overall cardiac and mediastinal contours are unchanged . A right shoulder replacement is incompletely visualized .