indium In 111-anti-CEA monoclonal antibody M5A
(IN-dee-um … MAH-noh-KLOH-nul AN-tee-BAH-dee …)
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.