Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient upright position . The heart size is normal . No configurational abnormality is identified . Thoracic aorta and mediastinal structures are unremarkable . The pulmonary vasculature is normal . No signs of acute or chronic parenchymal infiltrates are present and the lateral and posterior pleural sinuses are free . No pneumothorax in apical area . Skeletal structures of the thorax grossly within normal limits . Our records do not include a previous chest examination available for comparison .
    OUTPUT:
    
Normal chest findings . No evidence of active or latent tuberculosis in this patient with history of positive PPD .