Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG as well as aortic valve replacement . Heart size is likely unchanged , and mildly enlarged . The aorta remains tortuous . Mild pulmonary vascular congestion is demonstrated . No focal consolidation , pleural effusion or pneumothorax is present . Multilevel degenerative changes are seen within the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion .