Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been little interval change from the prior exam with continued near total opacification of the left hemithorax . No pneumothorax is identified . The right lung is grossly clear . Patient is status post median sternotomy and CABG .
    OUTPUT:
    
Little interval change from prior with continued opacification of the left hemithorax . No pneumothorax .