Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath again terminates in the lower superior vena cava . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . Similar mild relative elevation is noted along the right hemidiaphragm . The lungs appear clear . There has been no definite change .
    OUTPUT:
    
No evidence of acute disease .