Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in upright position . The heart size is within normal limits . No typical configurational abnormality is identified . Unremarkable appearance of thoracic aorta . The pulmonary vasculature is not congested . No signs of pleural effusion as the lateral pleural sinuses are free . No acute infiltrates and no evidence of pneumothorax in the apical area . Skeletal structures of the thorax grossly unremarkable . Our records do not include a previous chest examination available for comparison .
    OUTPUT:
    
Normal chest findings as identified on single AP chest view . No evidence of infiltrate .