Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is unchanged . Cardiac conduction device is contiguous with leads which project over the right atrium and right ventricle . Lungs are clear . No pneumothorax . Mild pulmonary edema is noted , new compared to ___ .
    OUTPUT:
    
Mild pulmonary edema , new compared to ___ . Unchanged appearance of the cardiomediastinal silhouette .