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In 111 Zevalin (... ZEV-uh-lin)

 A radiolabeled monoclonal antibody that is used to detect certain types of B-cell non-Hodgkin lymphoma and is being studied in the detection of other types of B-cell tumors. It is made up of the monoclonal antibody ibritumomab plus the radioisotope indium 111. It binds to the protein called CD20, which is found on B cells. A machine is used to detect which cells in the body have bound the antibody. In 111 Zevalin is a type of radiopharmaceutical. Also called indium In 111 ibritumomab tiuxetan and In 111 ibritumomab tiuxetan.

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