Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Port - A - Cath terminates at the cavoatrial junction . There is again leftward rotation of the heart and mediastinal structures coinciding with rightward convex curvature centered along the lower thoracic spine . The cardiac , mediastinal and hilar contours appear unchanged . The lungs appear clear . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
No evidence of acute disease .