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Ithaca, New York
A 18-year-old female asked:

My mom had breast cancer. she is doing well but she has the braca 2 mutation. what are the chances she passed it down to me? when should i get tested?

2 doctor answers7 doctors weighed in
Dr. Carlos Encarnacion
Medical Oncology 35 years experience
50%: Your chance of having your mother's mutation is 50% and you could test now that you are sexually mature. You only need to test for that particular mutation (single site analysis) unless there is suspicious family history in your dad's side too or you are of eastern europe jewish ethnicity. One of the families i follow has a different mutation from each side, so it can happen. Best to you.
Dr. Barry Rosen
Dr. Barry Rosen commented
General Surgery 34 years experience
Please meet with a genetic counselor before testing to understand the ramifications of a positive test on your life.
May 15, 2013
Dr. Carlos Encarnacion
Medical Oncology 35 years experience
Provided original answer
Absolutely correct, doc. Thanks.
May 15, 2013
Dr. Travis Kidner
Surgical Oncology 17 years experience
50%: You have a 50% chance of having the mutation.

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Last updated Sep 28, 2016

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