Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates at the cavoatrial junction . The cardiac , mediastinal and hilar contours appear unchanged . There is no pleural effusion or pneumothorax . There is similar mild relative elevation of the right hemidiaphragm . Streaky right posterior basilar opacities are compatible with minor atelectasis . Otherwise , the lungs appear clear . Bony structures are unremarkable aside from mild degenerative changes which are unchanged along the mid to lower thoracic spine .
    OUTPUT:
    
No evidence of acute disease .