Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The large right - sided pleural effusion is somewhat smaller when compared to previous exam from ___ . There is no pneumothorax . The left lung remains clear . The cardiomediastinal silhouette is unchanged . No acute osseous abnormalities identified .
    OUTPUT:
    
Large right pleural effusion is decreased in size since ___ . No other change .