Multi-factorial: Prognosis of breast cancer depends on multiple factors. HER2/NEU marker determination is important because of availability of a specific antibody treatment for women with HER2/NEU positive breast cancer. See this site for more information. http://ww5.komen.org/BreastCancer/TumorCharacteristics.html
Answered 7/7/2014
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Both: These tumors are on average more aggressive than their HER-negative counterparts, but also respond to herceptin (trastuzumab) which is very effective.
Answered 7/7/2014
3.9k views
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