Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , there is decrease in size of the left and a stable right pleural effusion . There is no pneumothorax . The right Pleurx catheter ends in the right lower lung . The mild generalized interstitial abnormality has slightly improved . The heart is normal .
    OUTPUT:
    
Interval decrease in left and stable right pleural effusion . No pneumothorax .