Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . The heart size remains unchanged and is within normal limits . No configurational abnormalities seen . Unremarkable appearance of thoracic aorta and mediastinal structures . 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 . Skeletal structures of the thorax grossly unremarkable .
    OUTPUT:
    
Stable chest findings , no evidence of acute pneumonic infiltrates in this patient with shortness of breath .