Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are symmetrically well expanded and well aerated without focal airspace opacity , pleural effusion or pneumothorax . The pulmonary vasculature is not engorged . The cardiomediastinal and hilar contours are within normal limits . Note is again made of dense calcifications at the aortic knob . There are multiple healed right - sided rib fractures and an old right distal clavicular fracture deformity .
    OUTPUT:
    
1 . No radiographic evidence of pulmonary metastasis . 2 . Stable healed right - sided rib fractures and old right distal clavicular fracture .