Understand Your Test


Formal Name


HER2/neu Amplification by FISH; HER2 Overexpression by IHC; HER2 Quantitative, Serum


Why Get Tested?

To determine whether a breast cancer tumor is positive for HER2/neu, which helps to guide treatment and predict the course of the disease (prognosis); sometimes to monitor treatment and for cancer recurrence.

When To Get Tested?

When you have been diagnosed with invasive breast cancer.