NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,926 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 epratuzumab tetraxetan
(IH-tree-um … eh-pruh-TOO-zoo-mab teh-TRAK-seh-tan)
A substance being studied in the treatment of certain types of B-cell cancer. Epratuzumab is a monoclonal antibody that binds to a protein called CD22, which is found on the surface of B cells. It is linked to a radioactive substance called yttrium Y 90, which may help kill cancer cells. Yttrium Y 90 epratuzumab tetraxetan is a type of radioimmunoconjugate.