Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , large hiatal hernia and small left pleural effusion are unchanged . Minor bibasilar atelectasis persists adjacent to the hiatal hernia . Heart size is normal . No pnemothorax .
    OUTPUT:
    
1 . Since ___ , large hiatal hernia and small left pleural effusion are unchanged . No pneumothorax .