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human epidermal growth factor receptor-2 (her-2/neu)

human epidermal growth factor receptor-2 (her-2/neu) is a genetic protein that is in part responsible for how certain cancer cells grow, divide, and repair themselves. some women have cells with more than the normal two copies of the gene (her-2) that produces this protein, which results in breast cancer that grows and spreads quickly and is likely to recur after treatment.

tests can be done on breast cancer cells to find out whether her-2/neu protein is present. this information is useful when treatment decisions need to be made.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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