Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The aorta is tortuous and diffusely calcified . The mediastinal and hilar contours otherwise are within normal limits . Lungs are clear and the pulmonary vascularity is within normal limits . There appears to be a small hiatal hernia . No pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Small hiatal hernia .