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 chest examination of ___ . The heart size is within normal limits . No typical configurational abnormality is seen . Thoracic aorta is mildly widened and elongated but without local contour abnormalities or wall calcifications . 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 on the frontal view . Skeletal structures of the thorax are grossly unremarkable . When comparison is made with the previous examination of ___ , no significant interval change can be identified .
    OUTPUT:
    
No evidence of pulmonary congestion or acute infiltrates in patient with history of shortness of breath .