Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New right pleural drain is in place . Opacification of the right hemithorax has slightly improved most notably with improved aeration along the right heart border . The left lung remains clear . No Large pneumothorax .
    OUTPUT:
    
Opacification of the right hemithorax has slightly improved most notably with improved aeration along the right heart border . No Large pneumothorax .