Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , aortic and mitral valve replacement , and CABG . Mild to moderate enlargement of the cardiac silhouette is unchanged . The aorta demonstrates mild atherosclerotic calcifications at the knob . There is mild pulmonary edema , asymmetrically worse on the right , and worse compared to the previous radiograph . No focal consolidation , large pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary edema , asymmetrically worse on the right .