Hi does anyone else have the BRCA 2 mutation but low penetrance?
Hi Molly it’s quite rare but it means some people who have the mutation will develop cancer but others don’t. It basically means less risk thankfully.
Did they tell you that you were low penetrance when they gave you your result? I just assumed the risk was the same for everyone who tested positive for BRCA2.
They said it was low penetrance when they gave me the result. She said the percentages shown online of how likely you were to have cancer would be lower than that for me.
That's really interesting - I'm afraid I can't help as I don't know if that's the case for me or not. I'm guessing not as they would have told me when I got my result.
Does the fact you are lower risk change anything for you in terms of choosing risk reducing surgery?
I also think they would have told you when you had your result. Even though it is low penetrance they are still recommending the removal of the ovaries and fallopian tubes but mammograms to check for breast cancer.
I was told by my genetics counsellor that they don't necessarily advise risk reducing breast surgery for BRCA2 these days - better screening (MRI rather than mammogram) and chemoprevention were the options they discussed with me. I've waiting to hear about an appointment for MRI but I haven't spoken with my GP yet about medical prevention.
Chemoprevention wasn’t mentioned to me but my niece will be having MRI scans re- breasts as she’s in her 30s but they weren’t suggested to me as I’m in my 50s.
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