NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,800 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.
- C-11 choline
- listen (… KOH-leen)
- A radioactive substance being studied in PET imaging to detect certain types of cancer. C-11 choline gets taken up by cells in the body and more of it is taken up by tumor cells than by normal cells. A PET scanner is used to detect which cells in the body have taken up C-11 choline. It is a type of radioimaging agent.