Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy and CABG . Left subclavian dual - lumen central venous catheter tip terminates in the right atrium , unchanged . Mild enlargement of cardiac silhouette is unchanged . Mediastinal and hilar contours are similar . Mild pulmonary vascular congestion is present without overt pulmonary edema . There may be trace bilateral pleural effusions . Minimal atelectasis is seen in the lung bases without focal consolidation . No pneumothorax is present .
    OUTPUT:
    
Mild pulmonary vascular congestion and mild bibasilar atelectasis with possible trace bilateral pleural effusions .