“Triple negative” is the term used to describe tumors that are ER-negative, PR-negative, and HER2-negative. It’s estimated that about 20% of breast tumors are triple negative.
You are here
Breast Cancer Sub-types
Understanding which sub-type of breast cancer you have will help you understand your treatment options. In this series, we explore what a diagnosis of hormone positive, HER2+, triple negative, and DCIS/LCIS really means and how each is treated.