Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy . The heart is mild to moderately enlarged . There is upper zone redistribution of the pulmonary vascularity , which appears also prominent and indistinct suggesting mild pulmonary vascular congestion . Otherwise , the lungs appear clear . There are no pleural effusions or pneumothorax .
    OUTPUT:
    
Findings suggesting mild pulmonary vascular congestion .