Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Central venous catheter terminates in the superior vena cava . The cardiac , mediastinal and hilar contours are stable . There is similar elevation of the right hemidiaphragm . There is no pleural effusion or pneumothorax . The lungs appear clear . Biliary stents project over the right upper quadrant . There is no free air .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .