Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views have been obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . The heart size remains unchanged and is within normal limits . No mediastinal abnormalities identified . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are present , and the lateral and posterior pleural sinuses remain free . No pneumothorax in the apical area on frontal view . Previously described discrete structural changes in posterolateral aspect of right - sided sixth rib remain unchanged . No new skeletal abnormalities are seen .
    OUTPUT:
    
Stable chest findings . No evidence of acute pulmonary infiltrate in patient who has temperature .