Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As before , Port - A - Cath terminates in the right atrium . An inferior vena cava filter is partly visualized . The heart is normal in size . The mediastinal and hilar contours appear within normal limits . The lungs appear clear . There are no pleural effusions or pneumothorax . The bony structures are unremarkable .
    OUTPUT:
    
No evidence of acute disease .