![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/spacer.gif)
(IN-dee-um … MAH-noh-KLOH-nul AN-tih-BAH-dee …)
![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/spacer.gif)
| A
substance being studied in the imaging of some types of
cancer. M5A is a monoclonal antibody that binds to a
protein called CEA on the surface of some tumor cells. It
is linked to a radioisotope called indium In 111. The
combined substance is injected into the blood, and a
machine is used to find cells in the body that bind to it.
Indium In 111 anti-CEA monoclonal antibody M5A is a type of
radioimmunoconjugate. |
![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/gray_spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/spacer.gif)
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![](https://webarchive.library.unt.edu/eot2008/20090115195234im_/http://www.cancer.gov/images/spacer.gif) |