Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged . The hilar and mediastinal contours are unchanged since ___ . There has been increase in central vascular congestion with mild interstitial edema . There are right lower and middle lobe densities , increased since the ___ examination , concerning for consolidations . There is no pneumothorax .
    OUTPUT:
    
1 . Increase in density of a right lower and middle lobe opacities , concerning for pneumonia . 2 . Cardiomegaly with central vascular congestion and mild interstitial edema .