Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The right hilum is mildly enlarged . Retrocardiac opacity likely represents atelectasis . The pulmonary vascular engorgement is mild . There is no pneumothorax . Small bilateral pleural effusions are likely . Temporary pacer leads are seen .
    OUTPUT:
    
Mild pulmonary edema .