NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,790 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

yttrium Y 90 SMT 487
(IH-tree-um …)
A substance being studied in the treatment of some types of cancer. Yttrium Y 90 SMT 487 contains a molecule that binds to a protein found on certain types of neuroendocrine tumors (tumors that form from cells that release hormones). It also contains a radioactive substance called yttrium Y 90, which may help kill cancer cells. Yttrium Y 90 SMT 487 is a type of radioconjugate. Also called yttrium Y 90 DOTA-tyr3-octreotide and yttrium Y 90 edotreotide.