Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable upright chest radiograph was obtained . There is no significant change in the moderate right and small left pleural effusions . Pulmonary edema has improved , particularly at the right base . There are no new abnormal mediastinal or hilar contours . Endotracheal tube and enteric catheter remain in satisfactory positions . A pigtail catheter projects over the right mid abdomen .
    OUTPUT:
    
Interval improvement in mild pulmonary edema . Stable appearance of moderate right and small left pleural effusions .