Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to large right pleural effusion is slightly smaller when compared to previous exam . There is associated atelectasis . Left lung is clear besides a small left pleural effusion which is new . The cardiomediastinal silhouette is within normal limits .
    OUTPUT:
    
Slightly smaller moderate to large right pleural effusion . New small left pleural effusion .