Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs again demonstrate a left chest wall pacer device with a single lead overlying the right ventricle . Heart size remains mildly enlarged . There is no focal consolidation , pleural effusion , or pneumothorax . Subsegmental atelectasis is noted . No displaced fracture is visualized .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No displaced fracture visualized .