Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild to moderate pulmonary vascular congestion is seen . The cardiac silhouette remains enlarged . The aorta is calcified and tortuous . No definite focal consolidation is seen . There is slight blunting of the posterior costophrenic angles and trace pleural effusions are difficult to exclude No pneumothorax is seen . Patient is status post median sternotomy and CABG .
    OUTPUT:
    
Pulmonary vascular congestion .