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Topic: ATM variant and Radiation

Forum: Positive Genetic Test Results —

BRCA 1 & 2, ATM, CDH1, CHEK2, MRE11A, MSH6, NBN, p53, PALB2, PMS2, PTEN, RAD50, RECQL, and RINT1 genes

Posted on: Feb 19, 2016 11:31PM

Susan72 wrote:

I am really looking for advice from anyone with the ATM gene variant or mutation. I got my results back and I called Myriad to talk to a genetic counselor. He told me that only one other person in the database has my variant. c.121A>G (p.Lys41Glu). I had 4cm of DCIS removed, low grade, ER and PR + (no necrosis, etc.). My plan was for radiation and tamoxefen. Then I saw on one of my DCIS Facebook boards someone mentioned concern over the ATM gene and radiation. I have since researched like crazy and my head is literally spinning. I have two children under the age of 6 and my only goal is to live. I also have several autoimmune diseases including hashimotos, sjogrens and celiac. My local genetic counselor would like me to go to a larger research hospital to meet with a geneticist with more access to the "latest research". Can anyone here shed light on the radiation and ATM concerns. My radiation oncologist was not concerned. My medical oncologist is doing more research.

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Posts 31 - 37 (37 total)

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May 24, 2017 09:18AM HulkSmash wrote:

Thank you, Stacy! I really appreciate any information you can share. Best of luck to you!

Best of luck to you, too TerezP!

Julie


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Sep 13, 2017 08:30AM Shari-Ann wrote:

I have NBN gene mutation and have had surgery for DCIS tumor. I have read that radiation causes more DNA breakage and have opted out of radiation. I'm taking Arimidex and am considering having ovaries removed. Radiation really scares me.

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Apr 14, 2018 08:02AM chocomousse wrote:

What's the difference between an ATM gene mutation and an ATM gene variant? Although I was diagnosed with BC in 2015, neither my BS nor oncologist recommended genetic testing. It was my gynecologist who recommended it in February. I was told over the phone that I was negative for the 25 genes tested, however, I was positive for 3 ATM gene variants and 1 CDKN2A gene variant.

Dx 4/23/2015, DCIS, Right, 5cm, Stage 0, Grade 3, ER+/PR+ Dx 8/18/2015, IDC, Right, <1cm, Stage IA, Grade 3, 0/2 nodes, ER+/PR+, HER2+ (IHC) Surgery 8/18/2015 Lymph node removal: Sentinel; Mastectomy: Right
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Apr 15, 2018 09:59AM Fab65 wrote:

Hi choco,

I too tested positive for the ATM variant and enrolled in the PROMPT study to stay up to date as best I could with any new information that is found about the variant. It is confusing, and I feel that there is some correlation between the variant and BC, but the research just isn’t clear yet. I received this link from the prompt study team. Maybe it will she’d some light on it.

https://event.webcasts.com/viewer/event.jsp?ei=1166777&tp_key=9d25146578


Best of luck

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Apr 18, 2018 06:28AM chocomousse wrote:

Hi Fab65. Do you know which ATM variants you have? Mine are -

c.320G>A (p.Cys107Tyr)

c.334G>A (p.Ala112Thr)

c.7313C>T (p.Thr2438lle)

Dx 4/23/2015, DCIS, Right, 5cm, Stage 0, Grade 3, ER+/PR+ Dx 8/18/2015, IDC, Right, <1cm, Stage IA, Grade 3, 0/2 nodes, ER+/PR+, HER2+ (IHC) Surgery 8/18/2015 Lymph node removal: Sentinel; Mastectomy: Right
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Apr 21, 2018 09:52AM - edited Apr 21, 2018 10:00AM by Fab65

Hi Chocco,

I just have one. It is ATM c.6577G>A(p.Val2193lle)

Zygosity:heterozygous

Hopefully in the near future more will be known about all of these. I just try to stay on top of anything that's due as far as mammo, skin cancer checks, etc. That's been really all any ofus can do 😌

I am currently being followed for asymmetry that was new this year on my mammogram and had a right core biopsy which ended up just being a fat necrosis. However, there have been quite a few medical issues for me this past year and hoping as those are followed nothing evolves. I will definitely continue to update findings to others as that’s the only way we can learn about what’s potentially linked to the ATM

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May 11, 2018 04:11AM Janeway69 wrote:

I just had blood drawn to test for an ATM mutation that my mother has. I have heard people refer to mutations and variants as though they were different things, including my GYN who, kind of flipped out when she heard about my mom and prompted me to test myself.
But the letter mom received about her tumor testing ( pancreatic, not breast), referred to her mutation as both "mutation" AND "variant," and the letter was from the genetic counselor at Memorial Sloan Kettering.
So, I don't know what to think about the language either.

My GYN has some experience with this because ATM mutations run in her family. Two of her close female relatives had an ATM mutation and had breast cancer. Both are still with us. The doctor gets yearly mammo and sono and yearly MRIs.
She told me radiation is a concern with ATM mutations. I had asked her about mammogram radiation and her response was that it was treatment radiation that was the thing. But no more details than that.

I wish I could help more.

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