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 or pneumothorax . Of note , there is a lucent lesion in the mid left clavicular shaft with scalloping of the cortex and no marginal sclerosis .
    OUTPUT:
    
No acute intrathoracic process . A lucent lesion with cortical scalloping in the left clavicle is incompletely evaluated . Dedicated left clavicle views are recommended , as well as correlation with history of malignancy .