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NCI Dictionary of Cancer Terms

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gadolinium texaphyrin  listen  (GA-doh-LIH-nee-um tek-SA-fih-rin)

  A substance that is being studied in the treatment of cancer. It may make tumor cells more sensitive to radiation therapy, improve tumor images using magnetic resonance imaging (MRI), and kill cancer cells. It is a type of metalloporphyrin complex. Also called motexafin gadolinium.