Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The midline is visualized . Large hiatal hernia in the left lower chest is larger than on ___ . Adjacent atelectasis is unchanged . The right lung is clear . Mediastinal contours and cardiac silhouette are stable from ___ . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No midline visualized . 2 . Large hiatal hernia in the left chest , increased size from ___ .