Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes remain slightly low , with unchanged . Position of . Enteric tube . Mild vascular congestion , right pleural effusion , bibasilar atelectasis , greater on the right , an extensive . Right hemi thorax postsurgical changes are stable . Spinal hardware is unchanged . The cardiomediastinal silhouette is also stable .
    OUTPUT:
    
No significant change in appearance of the chest since the prior study .