Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate no focal consolidation , pulmonary nodule , hilar lymphadenopathy or pneumothorax . The heart size is top normal . The cardiac , hilar , mediastinal contours are within normal limits . There is a probable calcified granuloma in the left lower hilum .
    OUTPUT:
    
No radiographic evidence of active pulmonary tuberculosis .