Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ Swan - Ganz catheter terminates in the descending pulmonary artery and smaller intracardiac loop reflects interval catheter withdrawal . Left pectoral pacemaker with right ventricular lead following the expected course . Unchanged , moderate to severe cardiomegaly . Mild pulmonary edema with worsening in the right lower lobe . Unchanged opacity at the left base likely reflects atelectasis .
    OUTPUT:
    
Mild pulmonary edema with worsening in the right lower lobe .