Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent and mildly increased right base opacity likely represents combination of moderate pleural effusion overlying atelectasis , underlying consolidation is not excluded . Small left pleural effusion is seen , with overlying atelectasis . No pneumothorax is seen . The patient is status post median sternotomy and CABG . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Persistent , mildly increased right base opacity likely represents combination of moderate pleural effusion noted overlying atelectasis , which may be slightly increased . Underlying consolidation is not excluded . Small left pleural effusion with overlying atelectasis .