Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . A right hemodialysis catheter terminates in the lower SVC . The lungs are fully expanded and clear . The heart size is top normal . Mediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No evidence of active or nonactive TB .