Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph ___ at 12 :59 is submitted .
    OUTPUT:
    
Interval extubation . Interval removal of the nasogastric tube and endotracheal tube . Chest tubes and mediastinal drains remain in place . Patient is status post median sternotomy for CABG with expected postoperative widening of the cardiac and mediastinal contours . There are bibasilar patchy opacities and likely small layering effusions , right greater than left . In addition , there is resolving mild interstitial edema . No pneumothorax is appreciated . Lung volumes remain low .