Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion pneumothorax . A linear radiopaque foreign object is seen projecting over the periphery of the left lower lung and chest wall , of unclear clinical significance .
    OUTPUT:
    
No evidence of acute cardiopulmonary process . Linear radiopaque foreign object projecting over the periphery of the left lower lung of unclear clinical significance , potentially in the breast to be correlated clinically .