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NCI Dictionary of Cancer Terms


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.