Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Projecting over each axillary region are surgical clips . The heart is mildly enlarged . The mediastinal and hilar contours appear unchanged . Moderate relative elevation of the right hemidiaphragm is noted . The lungs are clear . There are no pleural effusions or pneumothorax . Minor degenerative changes are noted along the thoracic spine .
    OUTPUT:
    
No evidence of acute disease .