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 abnormality is present . Thoracic aorta of ordinary ___ without evidence of 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 . Skeletal structures of the thorax grossly unremarkable . Our records include a previous chest examination of ___ . The patient had an episode of cardiac enlargement , pulmonary congestion , and the study showed evidence of small bilateral pleural effusions . These findings apparently have normalized .
    OUTPUT:
    
No evidence of cardiac enlargement , pulmonary congestion or acute infiltrates on this pre-operative chest examination .