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Dictionary of Cancer Terms

View in Spanish: Tecnecio m99Tc demobesin-4

Technetium Tc 99m demobesin-4 (tek-NEE-shee-um … deh-MOB-eh-sin)
A substance being studied as a way to find certain types of cancer. It contains a radioactive substance called technetium linked to another substance called demobesin. Demobesin binds to the receptor for bombesin (a substance that is found at higher-than-normal levels on some types of cancer cells). Technetium Tc 99m demobsin-4 collects in cancer cells and a machine is used to find where the cancer cells are in the body. It is a type of radiopharmaceutical and a type of radioimaging agent.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.