Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left anterior chest wall implanted dual - lead pacer is in standard position . Heart size is normal with tortuosity of the aortic arch . Hilar contours are unremarkable . Lungs are clear . Pleural surfaces are clear without effusion or pneumothorax . No fracture is identified .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No definite fracture is identified , though dedicated rib series may be helpful if there is focality on exam .