Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low which leads to bronchovascular crowding . No focal consolidation is identified . Widened mediastinal contour relates to known thoracic aortic aneurysm following repair of aortic root dissection . The cardiomediastinal silhouette remains mildly enlarged , for with mild pulmonary edema . There is no pleural effusion or pneumothorax . Median sternotomy wires intact . Surgical clips project over the right apex . Included upper abdomen is unremarkable .
    OUTPUT:
    
1 . No focal consolidation . Unchanged prominence of cardiomediastinal silhouette related to known thoracic aortic aneurysm . 2 . Stable cardiomegaly . Mild pulmonary edema .