Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Moderate enlargement of cardiac silhouette is similar compared to the previous study . The mediastinal and hilar contours with atherosclerotic calcifications seen diffusely in the thoracic aorta . Pulmonary vasculature is not engorged . Minimal atelectasis is seen in the retrocardiac region . No focal consolidation , pleural effusion or pneumothorax is detected . Patient is status post bilateral total shoulder arthroplasties which are incompletely imaged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .