Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest demonstrates interval worsening of right pleural effusion . There is persistence of bibasilar atelectasis which is unchanged since the prior study . There is no evidence of focal pneumonia or significant pulmonary edema . There is no pneumothorax . The cardiomediastinal silhouette is unchanged . Right Port - A - Cath and pigtail catheter projecting over the right abdomen are unchanged in position since the prior study .
    OUTPUT:
    
Interval worsening of large right pleural effusion . No focal pneumonia . Otherwise , unchanged since the prior study .