Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . There is similar moderate relative elevation of the right hemidiaphragm compared to the left . The lungs appear clear . Mid thoracic interspaces are mildly narrowed .
    OUTPUT:
    
No evidence of acute disease . Moderate elevation of the right hemidiaphragm .