Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate well expanded , clear lungs . Mild sub - pleural thickening at the bilateral apices is stable . The cardiomediastinal and hilar contours are unremarkable . There is no pneumothorax , pleural effusion , or consolidation .
    OUTPUT:
    
No evidence of tuberculosis .