Our Breast Cancer Main Article provides a comprehensive look at the who, what, when and how of Breast Cancer
Medical Definition of HER2
HER2: Abbreviation for human epidermal growth factor receptor 2. HER2 is a transmembrane tyrosine kinase receptor and is expressed by, and involved in the growth of, some cancer cells. For example, HER2 is overexpressed in 18% to 20% of invasive breast cancers and affects treatment as well as prognosis of breast cancers. Also called c-erbB-2 or neu; also written HER-2. Last Editorial Review: 5/13/2016  Back to MedTerms online medical dictionary A-Z List 
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