Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest wall pacemaker is present with a single lead in the right ventricle . Lungs are hyperexpanded . There is no focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal silhouette is enlarged but unchanged from prior studies . The imaged upper abdomen is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .