Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison with prior study is difficult due to changes in obliquity . Bilateral Pleurx catheters are unchanged . Post-surgical and post-radiation changes are again noted in the right apex , but the apical cavity seen previously is no longer visualized . Mild pulmonary edema seen previously is improved . No pneumothorax .
    OUTPUT:
    
Resolution of pulmonary edema seen previously on the left .