Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest ___ at 07 :45 is submitted .
    OUTPUT:
    
Feeding tube is seen coursing below the diaphragm . The left PICC line continues to have its tip at the cavoatrial junction . The mild pulmonary edema has improved . There are layering bilateral effusions with bibasilar consolidation suggestive of partial lower lobe atelectasis . The heart remains enlarged status post median sternotomy . Stable mediastinal contours . No pneumothorax .