ca27-29
Hi! I was diagnosed with a stage 2b very recently and just completed four rounds of a/c and about to start four rounds of taxol. I had a PET when first diagnosed.
I am confused about tumor markers. When first diagnosised my CA 27-29 was 37. Now it is 44. I know it is decreasing.
However, does this mean my one positive node is causing pending metastasis not yet visible on PET but will be revealed in a future PET? Like I am just in a holding pattern.
Pam
Comments
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Hi! I did alot of research on these boards about tumor markers after my mom was diagnosed. Same thing like you, right after chemo her numbers were slighlty elevated. A lot of the ladies reassured me that markers drawn too soon after chemo tend to be a bit high. I dont know if it from the chemo itself or maybe its effects on the body - inflamation? But in my moms case her ca27-29 was at 46 five days after chemo. She was retested six months later and was in the low 20's. Im sure some one who know more about it will pop up soon, but I do believe this happens often and probably has nothing to do with the node!!!!
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Is your Mom okay now? Pam
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Yes, just a lot of joint pain and achey bones from arimidex. But no reoccurrence, praise God! She now gets the tumor marker test once a year and it remains in the low 20's. Her radiologist is the one who runs it on her. Her oncologist won't do it, says the test is to unreliable and causes too much anxiety and stress. It sure-does do that!!!
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I am so happy for you and your Mom! Good news!
Pam -
pam - my CA27/29 was normal BEFORE chemo (after surgery) and high, double the high end of normal, AFTER chemo. It was re-tested two weeks later and had dropped, and on the last test was normal. Chemo causes a great deal of inflammation throughout the body and this can definitely skew the test. It is often regarded as an unreliable test in solo, but is used to track ascending or descending trends.
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Hi SpecialK! I can't imagine the scare involved in those two weeks for you. I am glad that they returned to normal.
I am finding it hard being at the mercy of our bodies and tests. However, I imagine this gets easier with time...
Do the tumor markers ever approach that of regular people who have never been diagnosed after treatment? Like can they get to 0. Pam -
I have tried to find the significance of a tumor marker reading between the lower numbers and the top number of 39. Exactly what does the number mean and, as long as it is below 39, is there any significance at all. Meant to ask my MO at last visit, but got sidetracked. Does anyone know?
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Lee, Great question. I want to know too. I am curious about the nitty gritty of tumor markers. Pam
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pam - tumor markers would probably not routinely be done on non-cancer patients so it is hard to say, but the test measures antigens in the blood after a dx. Anything under the outside limit is considered "normal" but I am assuming that is normal for a BC patient... and yes, it was pretty nerve-wracking waiting to see if my level would come down because I am Her2+ with positive nodes, you know where my mind went, right?
Here is a link with a great explanation of the test:
http://www.dslrf.org/breastcancer/content.asp?CATID=27&L2=1&L3=6&L4=0&PID=&sid=132&cid=591
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Yes. I know what waiting can do. Each time I go off the deep end I say I will never do that to myself again. I think it is normal as I notice everyone here is similar. There is so much at stake. Pam
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One of the crucial things I have learned is to focus on the old "what can I control, and what can I not control" adage. I read somewhere a Michael J. Fox quote that basically says if you imagine the worst and then it happens, you have lived it twice. It is a lot easier to say this than it is to do it though - I still struggle with it, but it does get easier as time goes by.
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Tumor markers do not measure circulating cancer and can not be 0. We all have them. Mine were incredibly low (below normal) while I had breast cancer. I am refusing them now because of the stress involved. John Hopkin's University doesn't do them either. Tumor markers are supposed to measure your own body's activities with regards to cancer, primarily inflammation which can come from any direction. I wouldn't expect them to be low with/after chemotherapy for sure!
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