Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear of focal consolidation , pleural effusion or pneumothorax . Flattening of the diaphragms likely reflects chronic pulmonary disease . The heart size is normal . The mediastinal contours are normal . There are no signs of latent or active tuberculosis .
    OUTPUT:
    
No signs of latent or active tuberculosis .