Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . There is opacity in the bilateral lung bases , likely reflecting atelectasis . Bilateral pleural effusions are seen , right greater than left . Mild hilar prominence is again noted , right greater than left , similar to prior exam . There is no pneumothorax . The cardiomediastinal silhouette is mildly enlarged . No pulmonary edema or pneumothorax .
    OUTPUT:
    
Bilateral pleural effusions with associated bibasilar atelectasis , right greater than left , similar to prior exam . Mild prominence of the hila is unchanged .