Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates in the mid superior vena cava . The cardiac , mediastinal and hilar contours appear stable . There is slight new blunting of the left lateral costophrenic sulcus , probably a trace pleural effusion , or perhaps atelectasis effacing the sulcus . There is no definite pleural effusion on the right . The lungs appear clear . A biliary stent is partly imaged in the right upper quadrant .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .