Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Status post sternotomy . Presence of a few surgical clips in the left anterior mediastinal structures is suggestive of previous bypass surgery . The heart size is not enlarged . No typical configurational abnormality is seen . Normal diameter of thoracic aorta but a few calcium deposits are seen in the wall at the level of the arch . Pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are present , and the lateral and posterior pleural sinuses are free . Skeletal structures of the thorax grossly unremarkable . Mildly accentuated kyphotic curvature is noted in the thoracic spine with mildly anterior wedge - shaped vertebral body , but no conclusive evidence for vertebral body compression fracture . Comparison can be made with a transferred PA and lateral chest examination from___ . The findings are identical .
    OUTPUT:
    
No evidence of acute pulmonary infiltrates or pulmonary vascular congestion .