Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are persistent bilateral pleural effusions , right greater than left . The right pleural effusion has decreased in size since prior however the left has increased . There is likely some loculation of the pleural effusion on the right medially . Superiorly , the lungs are clear . The cardiomediastinal silhouette is stable . No acute osseous abnormalities .
    OUTPUT:
    
Persistent bilateral pleural effusions , slightly smaller on the right but larger on the left when compared to prior exam .