Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post coronary artery bypass graft surgery . The heart is normal in size . The mediastinal and hilar contours appear unchanged . There is an unchanged pleural effusion on the right . Bilateral nipple shadows are visualized . Otherwise , the lung fields appear clear . There is no pneumothorax . Mild degenerative changes are similar along the thoracic spine .
    OUTPUT:
    
Stable appearance of the chest including moderate right - sided pleural effusion .