Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is enlargement of the cardiac silhouette , stable since the prior examination . There is right middle and lower lobe pneumonia .
    OUTPUT:
    
Stable cardiomegaly . Right middle and lower lobe pneumonia . Findings were discussed with Dr . ___ at 2 : 21 pm by Dr . ___ on ___ via telephone .