Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . The lungs appear clear . No free air is identified . A biliary stent projects over the right upper quadrant of the abdomen . There are also surgical clips projecting over the right upper quadrant , mostly commonly seen after cholecystectomy .
    OUTPUT:
    
No evidence of acute disease . No free air identified .