Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest film ___ 11 :41 is submitted .
    OUTPUT:
    
Interval worsening of pulmonary and interstitial edema . Persistent retrocardiac consolidation likely reflecting partial lower lobe atelectasis in the setting of an associated effusion . Status post median sternotomy for CABG . Overall cardiac and mediastinal contours are likely stable , although the left heart border is obscured . Smaller right effusion . No pneumothorax .