Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Dual lead pacemaker again seen with leads extending to the region the right atrium and right ventricle . Lungs are lucent compatible with known underlying emphysema . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
No acute intrathoracic process