Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker with leads terminating in the right ventricle and right atrium is in unchanged position . Increased lower lung opacities in more of a ground glass pattern are the likely pulmonary edema superimposed on background emphysema . No pleural effusion . No focal consolidations worrisome for pneumonia .
    OUTPUT:
    
Mild pulmonary edema superimposed on emphysema .