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 ___ . Status post sternotomy as before . Presence of multiple surgical clips in the anterior mediastinum are indicative of previous bypass surgery . The heart is not enlarged . The thoracic aorta is of ordinary ___ but shows some calcium deposits in the wall at the level of the arch . No local contour abnormalities are identified . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are seen , and the lateral and posterior pleural sinuses are free . No pneumothorax in the apical area . Relatively low positioned and somewhat flattened diaphragms suggest the possibility of COPD , but again these findings existed already on the previous study .
    OUTPUT:
    
Status post previous bypass surgery , no evidence of pulmonary congestion or acute infiltrates in this ___-year - old female patient with persistent cough . On the lateral view , presence of stabilization screw devices in the upper lumbar spine is observed , a finding not present on previous examinations .