While driving home from my
morning appointment, someone called and left a message about the genetic testing. I returned the call as soon as I got home.
The genetic counselor who works at the local site is on vacation. I will need to see a counselor at the main hospital in the city.
At first, the only available appointment was on a day that wouldn't work well for me. I asked if there was anything else available, and here's a bit of luck, they had a cancellation! All I had to do was get into the city by 1:00 the same day.
I Google Mapped the directions, and thankfully my husband was able to come with me, and do the driving. The older I get, the more anxious I get about driving in the city.
So we both met with the genetic counselor. She explained the role of genetic counseling in the context of my diagnosis.
For starters, the counselor told us that 1 in 8 women eventually get breast cancer. Of those, only 10% can be linked to a hereditary cause.
Apparently, age 43 is considered young for being diagnosed with breast cancer.
This site lists age 62 as the median age of diagnosis for breast cancer for U.S. women. A younger diagnosis makes it more likely that perhaps the breast cancer is related to a gene.
Genetic testing results are a factor in deciding the course of treatment. I'm already supposed to get a mastectomy. But if my genetic testing reveals that I have a gene that is linked to breast cancer, that means it's more likely that I will eventually get breast cancer in my other breast as well. In that case, the surgeon would be more likely to recommend a double mastectomy.
The counselor also said that the surgeon may use a more aggressive technique during surgery if I have genes linked to breast cancer, as it would be more imperative to try to remove all breast tissue.
Some genes are linked to both breast cancer and ovarian cancer. If I have one of those genes, for example, after I complete my breast cancer treatment, I might be asked to consider removing my ovaries as well.
Beyond my own health, genetic testing results could also affect my children. If I have a gene that could be passed on to them, they, too, would benefit from genetic testing, most likely starting in their 20s or 30s. We became emotional at the thought of our children facing cancer themselves, getting their own genetic counseling, some time in their future.
The first step is to do a blood test screening for the
9 most common genes linked to a significant increase in risk for breast cancer. If that comes back positive for any of the genes, the testing would probably stop there. I would move forward with a "genetic team," including a medical oncologist. They would counsel me on how my genetic testing results might affect my ongoing medical care.
If the screening comes back negative for the 9 most common genes, they would probably recommend I do further testing to screen for
23 additional genes that are linked to breast, ovarian, and uterine cancer. Alternatively, I could opt to screen for
83 genes linked to a whole bunch of different cancers.
Finally, she said that genetic testing requires prior authorization
from my insurance company. She would handle obtaining the pre-authorization, and at most I
might have to pay $250.
She asked me for a thorough medical history of incidences of cancer in my family, which aids in determining the likelihood of me having a hereditary gene linked to cancer. Then I had my blood drawn. The genetic counselor said she would call me in 1-2 weeks with the results.