Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP radiograph of the chest . Again visualized are multiple metallic densities likely consistent with shrapnel / bullet fragments . Pleural thickening at the left lung base , stable . There is no effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No acute intrathoracic process .