Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear within normal limits . An opacity in the lingula has largely resolved . There is also been improvement in some right mid lung opacities , but there is new right middle lobe opacification . Each hilum shows increased congestive changes . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings suggest mild pulmonary edema . Although pre-existing opacities have improved somewhat , particularly in the lingula , new right middle lobe opacification is concerning for pneumonia .