Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate marked improvement of pulmonary edema with asymmetric residual opacities in the left perihilar region . There are persistent bilateral pleural effusions , moderate on the left and mild on the right as well as associated left lower lobe atelectasis . Median sternotomy wires and CABG clips are noted . The heart size is normal . There is no pneumothorax .
    OUTPUT:
    
Marked improvement in pulmonary edema with residual left perihilar opacities .