A member asked:

Does having triple negative breast cancer tumors mean that they are slow growing tumors?

4 doctors weighed in across 2 answers

The opposite is true: Triple-negative breast cancer is defined by absent expression of the estrogen receptor [er], Progesterone receptor [pr], and human epidermal growth factor receptor 2 (her2). These cancers tend to behave more aggressively (grow faster) than other types of breast cancer.

Answered 6/30/2014

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No: Most triple negative breast cancers tend to be fast growing and more agressive than those which have hormone receptor positive cancer cells. But it is difficult to predict exactly.

Answered 3/13/2013

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