Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky opacities in the lingula correspond to scarring seen on the prior examinations . Otherwise , the lungs appear clear . There are no pleural effusions or pneumothorax . A Port - A - Cath terminates in the same position along the upper superior vena cava . Mild degenerative changes are similar along the thoracic spine .
    OUTPUT:
    
No evidence of acute disease .