Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . Heart size is unchanged and thus stable . The same holds for the thoracic aorta , which is mildly widened and elongated , but without local contour abnormalities . 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 . Skeletal structures with mild pectus excavatum deformity and slightly accentuated kyphotic curvature in the thoracic spine also unchanged .
    OUTPUT:
    
Stable chest findings . No evidence of acute cardiovascular changes such as CHF , pleural effusion or pneumothorax . No new infiltrates .