Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single views ( two exposures to cover entire lung field ) have been obtained with patient in upright position . The heart size is within normal limits . No configurational abnormality is seen . Thoracic aorta unremarkable . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are present , and the lateral pleural sinuses are free . No pneumothorax in apical area . Skeletal structures grossly within normal limits . Our records do not include a previous chest examination available for comparison .
    OUTPUT:
    
Normal chest findings identified on single AP chest views .