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 . Thoracic aorta mildly widened and elongated but no local contour abnormalities are identified . No conclusive evidence for aortic wall calcifications is seen . 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 evidence of pneumothorax in the apical area on the frontal view . Skeletal structures of the thorax are unremarkable .
    OUTPUT:
    
Stable chest findings . No evidence of cardiac enlargement , pulmonary congestion , or acute infiltrates . Mild degree of aortic widening and elongation does not appear excessive for patient 's age .