Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The aorta is tortuous . The patient is status post median sternotomy with wires intact . There is mild atelectasis or scarring adjacent to prominent pericardial fat pad at the left lung base . Otherwise , lungs are clear . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
No acute cardiopulmonary abnormality .