Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP semi-upright portable chest radiograph provided . Dual - lead pacer is unchanged . The previously noted opacity in the right lower lung has cleared . There is no large consolidation , effusion or pneumothorax . Old left rib cage deformities are unchanged . The cardiomediastinal silhouette appears stable .
    OUTPUT:
    
No acute traumatic injuries .