Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were compared to previous exam from ___ . Lungs are clear . There is no effusion or pneumothorax . Cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable . Seen on the lateral view are linear densities in the upper abdomen , compatible with cholecystectomy clips .
    OUTPUT:
    
No definite evidence of radiopaque foreign body .