Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: oderate cardiomegaly is essentially unchanged since ___ . Lungs fully expanded and clear . Small pleural effusion seen only on the lateral view . Stable appearance of the dual lead pacemaker . Thoracic aorta is mildly enlarged generally but not focally aneurysmal . No pneumothorax .
    OUTPUT:
    
Stable appearance of dual lead pacemaker in standard position .