Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previously seen small apical pneumothorax is unchanged in size from the prior exam . Subcutaneous air is still present . Bibasilar atelectasis and a large hiatal hernia are unchanged in appearance . There is no new consolidation . There is no edema or pleural effusion . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
1 . Stable small apical pneumothorax . 2 . Unchanged bibasilar atelectasis .