Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Moderate enlargement of the cardiac silhouette persists . The aorta is tortuous and demonstrates diffuse atherosclerotic calcifications . The pulmonary vasculature is normal . Apart from minimal atelectasis in the left lung base , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Degenerative spurring is again noted involving both acromioclavicular joints .
    OUTPUT:
    
No acute cardiopulmonary abnormality .