Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . An ovoid radiopacity in the upper left lung field is unchanged since at least ___ and represents calcification of the sternoclavicular joint as noted in the prior CT . Cardiomediastinal and hilar contours are unremarkable . Right hilar calcified lymph nodes are unchanged and compatible with prior granulomatous disease . There is no pleural effusion or pneumothorax . Mild aortic tortuosity is present .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .