Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . The heart size is within normal limits . No typical configurational abnormalities identified . The thoracic aorta is mildly widened and elongated but no local contour abnormalities or wall calcifications are seen . No mediastinal abnormalities are identified . 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 pneumothorax in the apical area can be identified on the frontal view . Comparison is made with two previous chest examinations dated ___ and ___ . There are no new pulmonary abnormalities . The heart size is stable . Mild widening and elongation of the thoracic aorta existed already earlier and is unchanged .
    OUTPUT:
    
Stable chest findings , no evidence of acute infiltrates .