A member asked:

Are all brca gene mutations hereditary? can you share some sources?

4 doctors weighed in across 2 answers

BRCA mutations: The majority of brca mutations are inherited from your mother or father. There are some which occur de novo(without inheritance). There is considerable information on the website for myriad- this is the company which has been doing the commercial testing in the usa.

Answered 3/14/2015

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Dr. Brian Nguyen answered

Specializes in Obstetrics and Gynecology

Hereditary cancer: Women w/ 2+ immediate family members w/ a hx of breast/ovarian CA at 50% chance of developing breast cancer. If you have it, get screened with CA-125 blood test, ultrasound, mammogram/MRI, usually starting at age 30. Surgery after childbearing.

Answered 5/26/2015

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