Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild bibasilar atelectasis and small bilateral pleural effusions persist . No definite pneumothorax is appreciated . Cardiomediastinal silhouette is stable . Multiple rib fractures and lower thoracic spine compression deformities are better evaluated on the recent CT scan .
    OUTPUT:
    
1 . Persistent bibasilar atelectasis and small effusions , unchanged . 2 . No pneumothorax appreciated .