Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates at the cavoatrial junction . Surgical clips project about the expected site of the gastroesophageal junction . The cardiac , mediastinal and hilar contours appear unchanged . The heart is normal in size . There is very similar mild relative elevation of the right hemidiaphragm . There is no pleural effusion or pneumothorax . The lungs appear clear aside from a linear right middle lobe opacity suggesting minor scarring .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .