MD here. Something is odd. If it&#x27;s big enough to be tumor-like it&#x27;s big enough to be biopsied.<p>If it&#x27;s small, they can just watch it on serial CT scans. If it&#x27;s growing, they can put her on bypass and replace that section of her aorta. Not as easy as it sounds, but still usually possible.<p>Repair with stem cells is very different than curing a tumor.<p>In complex, atypical cases the answer is always to go to a large teaching institution.