Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pectoral pacemaker is seen with a transvenous lead in the right ventricle . Redemonstrated loculated right pleural effusion is unchanged compared to multiple prior exams dating back to ___ . The left lung is clear . The heart size is normal . No pneumothorax , pulmonary edema , or pneumonia .
    OUTPUT:
    
1 . A left pectoral pacemaker is seen with a transvenous lead in the right ventricle . 2 . Unchanged loculated right pleural effusion dating back to ___ .