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This one here is a... VA3 FMD. Is that a PET scan? It is a radioactive tracer or substance. It's injected and it accumulates in cancer cells. It's actually a tracer and it's attached to some glucose. It's a glucose substance. It's absorbed in tissues like glucose. Cancer tissue in particular metabolizes fat so they would be using sugar much more than the surrounding tissue. So they inject this tracer.
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