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NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,188 terms related to cancer and medicine.

We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.

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.