Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is again moderately enlarged . The mediastinal and hilar contours appear stable . There is perihilar congestion and a mild interstial abnormality , similar to prior findings . Otherwise , the lungs appear clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings suggest mild pulmonary edema .