Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The cardiomediastinal and hilar contours are within normal limits . The aorta is mildly tortuous . There is no focal consolidation , pleural effusion or pneumothorax identified . Subtle retrocardiac density is minimally increased in size from the prior exam in ___ and likely represents a hiatal hernia .
    OUTPUT:
    
No acute intrathoracic process . Hiatal hernia is minimally increased in size from the prior examination in ___ .