NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,177 terms related to cancer and medicine.

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FMISO
A radioactive substance being studied as an imaging agent in head and neck cancers and other types of cancer. It binds to large molecules in tumor cells that have a low level of oxygen. Radiation given off by FMISO is detected by a PET scan. The amount of FMISO in the tumor may help decide the best treatment and help predict whether the cancer will come back after treatment. FMISO is a type of radioimaging agent. Also called 18F-fluoromisonidazole, 18F-MISO, and fluorine F 18-fluoromisonidazole.