Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tracheostomy tube appears to project within the trachea . The lung volumes remain low . There is unchanged atelectasis in the right lung base . A small - to - moderate right pleural effusion is unchanged . A small left pleural effusion is more dependent in position from ___ . No appreciable pneumothorax is seen . Moderate enlargement of the cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
1 . Persistent low lung volumes and bibasilar atelectasis . 2 . Small - to - moderate right pleural effusion and small left pleural effusion .