Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The hilar and mediastinal contours are normal . The lungs are well expanded and clear . There is no evidence of active or latent TB . There are no pleural effusions or pneumothorax . Visualized osseous structures are grossly unremarkable .
    OUTPUT:
    
No radiographic evidence evidence of active or latent TB .