Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior radiograph dated ___ , the extent of the preexisting right pleural effusion has decreased with improved right lower lobe aeration . The tip of the catheter is constant in position within the right pleural space . No pneumothorax is identified . The left lung remains grossly clear . The cardiac and hilar silhouettes are stable in appearance .
    OUTPUT:
    
Improved right lower lobe aeration with mildly decreased right pleural effusion .