Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is again mildly enlarged . The mediastinal and hilar contours appear unchanged . There is no pleural effusion or pneumothorax . Background pulmonary congestion appears as a stable finding . Left lower lobe opacification has resolved .
    OUTPUT:
    
Findings suggesting mild vascular congestion but very similar to the prior examination .