Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes . Persistent , bilateral pleural effusions , greater on the right . Associated atelectasis bilaterally appears to have increased on the right in the interim . Known rib fracture is are unchanged . Cardiomediastinal silhouette is unchanged with probably top - normal heart size . No pneumothorax .
    OUTPUT:
    
Persistent bilateral pleural effusions and compressive atelectasis , slightly increased in the interim .