what do tumor markers really mean anyway?

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kdholt
kdholt Member Posts: 229

At my last onco appt.my doc said that he was was monitoring all of his breast cancer patients now  with breast cancer tumor marker tests whether they were early stage or not. My test came back at 31(0-38 is considered normal) so I am in the normal range. My question is how reliable is this test, what does it mean I scored a 31 and should i be nervous because i am on the high side of normal or doesn't that mean anything? My onco did not act concerned- he kept telling me I was normal. Anyone with experience or knowledge about this test?

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  • kalyla
    kalyla Member Posts: 258
    edited August 2009

    I don't really know what they mean but I'm sure someone will come along and educate us... My oncologist does not test for tumor markers, even on his stage IV patients, beause he says they are unreliable.

  • kdholt
    kdholt Member Posts: 229
    edited September 2009
  • JeninMichigan
    JeninMichigan Member Posts: 2,974
    edited September 2009

    My oncologist also does not test for tumor markers either.  She said they are not a reliable indicator of what is going on with you.   She said she relies on how you are feeling and PET scans more than TMs.

    Jennifer

  • sheila888
    sheila888 Member Posts: 25,634
    edited September 2009

    I go to Cancer Tumor Marker test every 4 months. Week before and until i get the result i am a nervous wreck.

    I don't know my numbers but my understanding after reading these boards are.......

    As long as they stay steady its okay when the numbers suddenly start climbing lets say from 31 to 50 they might start doing some scans. they also say its not 100% reliable.

    I'm sorry i wasn't much help, but thats all I know.

    Smile Sheila

  • pj12
    pj12 Member Posts: 25,402
    edited September 2009

    I think Sheila is right; consistency is more important than the actual number.  My medical oncologist does a CBC and CA 15-3 every 3 or 4 months.  I like the objectivity of the tests, even though I, too, have read they are not 100% prognostic. They are not expensive at all (once my insurance assigns a customary and reasonable value to them) so even after the first of the year when my deductible starts over I won't mind paying out of pocket.  And my insurance does pay for them... so they must think they have some value.

    31 sounds good to me... I did read another discussion of this topic where a member said her number shot up to around 2000 when things started to go in a bad direction.  I don't know if that is unusual.

    Pam 

  • mawhinney
    mawhinney Member Posts: 1,377
    edited September 2009

    My onc said tumor marker tests are unreliable and doesn't use them.

  • pj12
    pj12 Member Posts: 25,402
    edited September 2009

    It would be interesting to know something about the doctors who use tumor markers vs those who do not.

    For instance:  mine is female, young, private practice in Florida, Indian educated, Pro tumor markers. 

  • pip57
    pip57 Member Posts: 12,401
    edited September 2009

    Mine is young, female and does not rely on the tumor marker test.  Neither does her 60 something male partner.

  • fairy49
    fairy49 Member Posts: 1,245
    edited September 2009

    my onc is a young guy, he does them, my 2nd 4 month follow up is scheduled for Sept 17th, I have the blood work done next week, I am already nervous, it sucks!!

  • somerset72
    somerset72 Member Posts: 30
    edited September 2009

    My onc does them every visit which is now every 4 mos.  I have read also that they are not that reliable but it gives me some peace of mind anyhow.  My onc is 40ish, male, school in Saudi Arabia.

  • LisaF
    LisaF Member Posts: 200
    edited September 2009

    I go to Stanford, and my oncologist doesn't use them either. He's considered to be one of the best, but he is semiretired.  He also doesn't test for tamoxifen metabolism.   Wondering if I should be concerned.....

  • diana50
    diana50 Member Posts: 2,134
    edited September 2009

    my oncologist uses them but also says that they aren't reliable.  i think they are just another tool to look at; gathering information.  i notice that she has them in the jacket of my medical file...that way she can see over a period of time (7 years...yeah) what they are doing.  they were only elevated over normal when i was on chemo which happens because the chemo stirs up the BC antigens...they will go up and down...within normal range which doesn't freak me out...i guess they they went WAY up....then i would be concerned.  at this point' all i do for followup is blood work...liver enzymes...TM and mammo and breast MRI.  for me; i like doing the markers...it makes me feel like that is one more possible way...they can moniter me. scans aren;t always reliable either....sometimes i think it is just a "crap shoot"  i actually rely more on how i feel then anything.  hang in there warriors**

    diana50

  • Member_of_the_Club
    Member_of_the_Club Member Posts: 3,646
    edited September 2009

    My original onc did the test.  I once had a score of 70, which was a serious trauma.  He said he would only run tests if it was over 100 and it did go back down to normal.   But every test after was extremely stressful.  My current onc does not do the test (and he is the director of a major cancer center).  He says it is unreliable and causes patient anxiety.  I agree.  My quality of life has improved since I stopped having the test.

  • rgiuff
    rgiuff Member Posts: 1,094
    edited September 2009

    Mine does them every visit, (every 3 months).  I asked him about their reliability and he said by itself, it's not a valuable test, but makes up one more piece of the puzzle when put together with symptoms and all the other data.  He is a well respected Onc, early 60 ish, here on Long Island, who is head of his oncology group.  He has suggested a few holistic remedies for some of my side effects.

  • Tabatha00
    Tabatha00 Member Posts: 133
    edited September 2009

    My onco doesn't do tumor markers either.   He said they are unreliable and lead you on a wild goose chase.  

  • darsura
    darsura Member Posts: 71
    edited September 2009

    My onc does them every visit, which for me right now (for the first year) is every 3 months.  He is 55-ish.

  • 07rescue
    07rescue Member Posts: 168
    edited September 2009

    There are several different tumor markers and some are considered more reliable than other for detecting certain cancers. I am almost 4 months post chemo and still getting Herceptin until February nevertheless my CEA tumor marker was high before chemo, and went even higher after chemo, and the third repeat test showed it had doubled in about a month, even though I am still in treatment. My oncologists are taking it very seriously and have scheduled PET and bone scans for me to see if metastasis or any additional malignancy can be detected.

    Dx'ed 8/19/2008, IDC, <1 cm, Stage 1, Grade 3, 0/3 nodes, ER+/PR-, HER2 +

  • EleanorJ
    EleanorJ Member Posts: 752
    edited September 2009

    That is so interesting that SO many onc won't do the test for it's unreliabilty! I asked mine about it and his answer was that it is a GREAT test, but it's not its time yet so he doesn't do them.

  • pj12
    pj12 Member Posts: 25,402
    edited September 2009

    After absorbing all these different and educated opinions I think my attitude toward tumor marker testing is going to be:

    If it comes back low it is an excellent and reliable test.  If it comes back high it is an unreliable and worthless exercise.  :)  Works for me.

    Pam 

  • eleataylor
    eleataylor Member Posts: 8
    edited September 2009

    My oncologist is a young female but in a large practice with about 20 other oncologists of both genders and ages range from late 30's to late 60's. They are all pro tumor markers but recognize the "unreliability" factors and use it more as a screening tool and look at consistancy with the results. I feel better having it done.

  • EGAL
    EGAL Member Posts: 539
    edited September 2009

    My onco does not do tumor markers. 

    Ellen

  • carol1949
    carol1949 Member Posts: 562
    edited September 2009

    My onc told me that my tumor marker test didn't tell her much of anything and typically they are used in people with mets.

  • nobleanna007
    nobleanna007 Member Posts: 641
    edited September 2009

    My oncolgist does them although I have never hear what my number is. But I gues if it is not a concern to her and my WBC is good than everything is going good! I declined 6month scans due to I feel well and everything else has come back fine. I will do the yearly scans just to make sure.

  • HelenaJ
    HelenaJ Member Posts: 1,133
    edited September 2009

    My Onc is young - well mid 30's and male.  I have had one test done and I whopped a score of 52 which freaked me out.  Turns out that you aren't supposed to do them when you have your period (which I was) and being premenopausal can stuff with the numbers as well.  I did another test a week later, as a matter of urgency on my part, and my score dropped down to 38.  Still not good but I think as a couple of ladies posted before it is just a screening tool and consistency is the important thing, consistently high, normal, low etc.  And as carol1949 said it is more commonly used for people with mets.

    Great thread - this forum is just a minefield of information. Thank you ladies.

    big hugs

    Helena

  • ihatesnowihatesnow
    ihatesnowihatesnow Member Posts: 859
    edited September 2009
  • Sydney6
    Sydney6 Member Posts: 172
    edited September 2009

    My onco does the tumor marker test every 3 months and I surely hope it's not because I mets and she knows it but I don't.  I think she does it because my tumor showed lymphovascular involvement and she wants to make sure I don't develop mets.  The first time was after surgery, but before radiation began I believe to get a baseline.  At that time I also had a bone scan & a CT scan so she knew exactly what we were dealing with before treatment started.  She is about mid 30's and of Indian decent.

    Sue

  • pj12
    pj12 Member Posts: 25,402
    edited September 2009

    HI Sydney6,

    I too had LVI so maybe that is why my med onc does the tumor markers.  That had not occurred to me.  Glad she (young, Indian educated) does them.

    Pam 

  • Gitane
    Gitane Member Posts: 1,885
    edited September 2009

    My oncologist is about 60 years old, and is in private practice.  I asked him about the blood tests for tumor markers.  I didn't want to do them.  He feels that they can indicate mets up to 6 months before any clinical signs appear.  I asked him why I would want to know early, if early intervention doesn't matter.  He said there are some instances where catching and treating earlier may lead to a better prognosis, not a cure, of course, but a little better prognosis.  I am prone to be very anxious about tumor markers, so I agreed to having them done, but I asked him not to tell me the results, good or bad.  I have left it in his hands to decide if/when to tell me.  I know this is "head-in-the-sand" thinking, but there it is.

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