Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 08 :04 is submitted .
    OUTPUT:
    
Right internal jugular introducer catheter is unchanged . Stably enlarged postoperative appearance of the cardiac and mediastinal contours . There continues to be hazy opacity throughout both lungs which may be slightly worse suggesting that there is now superimposed mild pulmonary edema . Persistent opacity in the retrocardiac region is suggestive of partial lower lobe atelectasis . There are likely stable bilateral layering effusions .