Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy with at least two discontinuous wires in the superior sternum , which are unchanged from the prior study . Epicardial wires are seen , as before . There is no new consolidation concerning for pneumonia . The inspiratory lung volumes remain decreased . No significant pleural effusions or pneumothorax is detected . The pulmonary vasculature is not engorged . The cardiac silhouette is mildly enlarged but stable . The mediastinal contours are prominent but unchanged with unfolding of the thoracic aorta . The hilar contours are also stable . Calcification in the posterior upper mediastinum on the lateral view corresponds to the abdominal aorta .
    OUTPUT:
    
1 . No focal consolidation concerning for pneumonia . 2 . Stable mild cardiomegaly .