Is HER2-negative Better?
A Word From Verywell. While overall the prognosis of HER2-positive tumors tends to be somewhat poorer than for those that are estrogen receptor-positive but HER2-negative, the widespread adoption of HER2 therapies is making a difference in survival rates, as well as reduced risk for recurrence.
How do you interpret HER2 results?
The IHC gives a score of 0 to 3+ that measures the amount of HER2 proteins on the surface of cells in a breast cancer tissue sample. If the score is 0 to 1+, it’s considered HER2-negative. If the score is 2+, it’s considered borderline. A score of 3+ is considered HER2-positive.
What is the survival rate of invasive ductal carcinoma?
Invasive ductal carcinoma describes the type of tumor in about 80 percent of people with breast cancer. The five-year survival rate is quite high — almost 100 percent when the tumor is caught and treated early.
What is an Allred score?
The Allred score combines the percentage of positive cells and the intensity of the reaction product in most of the carcinoma. The 2 scores are added together for a final score with 8 possible values. Scores of 0 and 2 are considered negative. Scores of 3-8 are considered positive.
What does a Her2 / Neu score of 2 mean?
A score of +2 means the results are unclear and FISH testing should be done. A score of +3 means the tumor is HER2 positive. FISH results are positive or negative. If you are having the blood test, HER2/neu is measured in nanograms per milliliter (ng/mL).
What’s the difference between HER2 positive and HER2 negative cancer?
Often the IHC test is done first. If the IHC result is 0 or 1+, the cancer is considered HER2-negative. These cancers do not respond to treatment with drugs that target HER2. If the IHC result is 3+, the cancer is HER2-positive.
What does a borderline HER2 test result mean?
An IHC 2+ test result is called borderline. If you have an IHC 2+ result, ask to have the tissue retested with the FISH test. Research has shown that some breast cancers that are HER2-positive can become HER2-negative over time.
What is the HER2 score on a fish test?
A score of 0 or +1 means your tumor is HER2 negative. A score of +2 means the results are unclear and FISH testing should be done. A score of +3 means the tumor is HER2 positive. FISH results are positive or negative.