Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Moderate enlargement of the cardiac silhouette is unchanged . Aortic knob calcifications are re- demonstrated . Widening of the mediastinal contour at the level of the vascular pedicle is re - demonstrated compatible with elevated central venous pressures . There is also mild pulmonary vascular congestion . Probable small bilateral pleural effusions are demonstrated . Patchy opacification within the left lung base may reflect atelectasis . No pneumothorax is present . There are moderate multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild pulmonary vascular congestion and probable small bilateral pleural effusions . Patchy left basilar opacity may reflect atelectasis .