Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views obtained with patient in upright position . The heart size is within normal limits . No typical configurational abnormalities identified . Thoracic aorta unremarkable . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are present and the lateral and posterior pleural sinuses are free . No prior chest examinations in our records are available .
    OUTPUT:
    
Chest findings within normal limits . No evidence of acute infiltrates or CHF .