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Questions about lab tests
I have read here about an HER2 Serum blood test. I have not received this. I asked my onc about it this week and she was dismissive, saying everything I read about does not necessarily apply to me. But I still want to know what it is!!!
The next question: how exactly does the CA 27.29 tumor marker test work? The little I have found on it suggests that an increase in the number can indicate potential for recurrance. Well, I am thought to not have a tumor right now. So why does the test show ANY reading? Mine has been going up from the 20s to 30. The range is only 0 to 37. My onc tried to explain that EVERYONE has some positive finding. But I don't understand why that would be.
I have a call in to talk to the laboratory to see if someone can explain it better to me. I am having communication problems with my onc sometimes. And it did not help that I had a dose of Ativan in me when we talked!! I was afraid that would happen!
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Bonnie
Post menopause
May 2007 Core biopsy, Rt breast
ER+, Pr-, HER2 +++, Grade 3
Ki-67: 90%
"suspicious area" left breast
Bilateral mastectomy, (NED on left) May 2007
Sentinel Node Neg
Stage 1, DCIS with microinvasion, 3 mm, mostly removed during the biopsy....
Femara (discontinued 7/07) Resumed 10/07
OncoType score 36 (July 07)
Began THC 7/26/07 (d/c taxol and carboplatin 10/07)
Began Herceptin alone 10/07
Finished Herceptin July /08
D/C Femara 4/10 (joint pain/trigger thumb!)
5/10 mistakenly dx with lung cancer. Middle rt lobe removed!
Aromasin started 5/10
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