Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New dual lead pacemaker with the tip in the right atrium and right ventricle . Moderate cardiomegaly . Linear opacity in the left upper lobe is likely a skin fold as lung markings are seen beyond . No pneumothorax . No new mediastinal widening . No overt pulmonary edema . Healing right - sided surgical neck and proximal humeral fracture again demonstrated .
    OUTPUT:
    
No pneumothorax . Dual lead pacer in standard position .