Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ at 13 :48 is submitted .
    OUTPUT:
    
Interval placement of left chest tube with re-expansion of the left lung . The tracheostomy tube remains in satisfactory position . There is bilateral interstitial prominence and perihilar fullness likely reflecting mild to moderate interstitial edema . No pneumothorax is appreciated . Stable postoperative cardiac and mediastinal contours status post median sternotomy for CABG .