Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . There is a small hiatal hernia . The mediastinal and hilar contours appear otherwise within normal limits . There is no pleural effusion or pneumothorax . The lungs appear clear . Upper thoracic interspaces appear mildly narrowed .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . Small suspected hiatal hernia .