Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a left chest wall pacer with the leads projecting over the right atrium and ventricle . The cardiomediastinal silhouette remains mildly enlarged . There is again mild vascular congestion . No focal consolidation , pleural effusion , or pneumothorax is identified .
    OUTPUT:
    
Mild vascular congestion .