Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size remains mildly enlarged . A large hiatal hernia is re - demonstrated within the air - fluid level noted . The aorta remains mildly tortuous . Widening of the superior mediastinum likely reflects a combination of an enlarged thyroid gland with tortuous right brachiocephalic vessel . Clip is noted within the left superior mediastinal compatible with prior parathyroid surgery . Pulmonary vascularity is normal . Except for minimal linear atelectasis or scarring within the left lung base , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities are detected .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Large hiatal hernia .