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Definition of HER2

HER2: Abbreviation for human epidermal growth factor receptor 2.

HER2 is expressed by, and involved in the growth of, some cancer cells. For example, a minority of breast cancers express HER2 protein.

Also called c-erbB-2.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=16563
Last Editorial Review: 3/19/2001 7:07:00 AM

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