![](https://webarchive.library.unt.edu/eot2008/20090117023225im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20090117023225im_/http://www.cancer.gov/images/spacer.gif)
| A radiolabeled substance being studied as an imaging agent in breast cancer. F-18 FES binds to estrogen receptors and gives off radiation that can be detected by a PET scan. The PET scan forms an image that shows where cancer cells with estrogen receptors can be found in the body. It is a type of radioimaging agent. Also called F-18 16 alpha-fluoroestradiol. |
Previous Definitions: | extraosseous, extrapleural pneumonectomy, extravasation, eye cancer, F-18 16 alpha-fluoroestradiol | Next Definitions: | falimarev, fallopian tube, false-negative test result, false-positive test result, familial adenomatous polyposis |
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![](https://webarchive.library.unt.edu/eot2008/20090117023225im_/http://www.cancer.gov/images/spacer.gif) |