Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are normally expanded and clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . There is no pleural effusion or pneumothorax . A chain projecting over the left upper quadrant is better evaluated on concurrent abdominal radiograph .
    OUTPUT:
    
1 . No acute cardiopulmonary abnormality . 2 . Radiopaque foreign body projecting over the left upper quadrant better seen on concurrent KUB .