Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to 1 day prior , small right pleural effusion has increased in size . Small left pleural effusion is unchanged . Lungs are well - expanded without new focal opacity . Heart size is top - normal . Cardiomediastinal and hilar silhouettes are stable .
    OUTPUT:
    
Small right pleural effusion has increased in size . Small left pleural effusion is unchanged .