Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac conduction device is contiguous with leads which projects over the right atrium , right ventricle and left chest wall . Moderate cardiomegaly is unchanged . Mild elevation of left hemidiaphragm is unchanged . An opacity at the right lung base is new from prior .
    OUTPUT:
    
New opacity at the right lung base may represent pneumonia or asymmetric pulmonary edema in the appropriate clinical setting .