Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube , enteric catheter , and left PICC are unchanged in position . Bilateral airspace opacities , greater on the right , are similar in appearance , with mild improvement in right pleural effusion . The cardiomediastinal silhouette is unchanged . No pneumothorax is present .
    OUTPUT:
    
Mild interval improvement in right pleural effusion . Otherwise , no significant change in appearance of the chest since the prior study .