Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post CABG . Median sternotomy wires appear intact . There is stable mild cardiomegaly . The mediastinal and hilar contours are normal . Grossly unchanged soft tissue fills the retrosternal clear space reflecting a known ascending aortic aneurysm . The lungs are normally expanded and clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . Stable mild cardiomegaly . 2 . Ascending aortic aneurysm .