NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,176 terms related to cancer and medicine.

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fluorine F 18-EF5
(FLOOR-een ...)
A radioactive substance being studied in positron emission tomography (PET) imaging to find cancer cells that have a low level of oxygen. This may help predict how well the cancer will respond to treatment. Also called 18F-EF5.