Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . Heart size is normal . The aortic arch is calcified . The mediastinal contour is otherwise unremarkable . Diffuse mild interstitial prominence suggests mild pulmonary vascular congestion . Lungs are hyperinflated . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild pulmonary vascular congestion .