NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,879 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- technetium Tc 99m dextran
- listen (tek-NEE-shee-um ... DEK-stran)
- A substance being studied as a way to find sentinel lymph nodes in some types of skin cancer and breast cancer. It contains a radioactive substance called technetium linked to a substance called dextran. Dextran helps technetium stay in blood and lymph vessels after it is injected. A machine or probe that detects radioactivity shows which lymph nodes near the tumor have technetium Tc 99m dextran in them. It is a type of radiopharmaceutical and a type of radioimaging agent. Also called 99m-Tc-Dx and Tc-99m Dextran.