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CA 27-29 numbers rising: Does anyone else have an issue like this?

Breast Cancer | Last Active: 3 days ago | Replies (166)
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@rra815

How reliable is CA 27.29 TOSOH cancer marker test for HER2+ Metastatic breast cancer reoccurrence? My latest test now is at 35.9. Is there a better test to detect a reoccurrence? I was at a 24 but it has been increasing significantly last 6 months.

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Replies to "How reliable is CA 27.29 TOSOH cancer marker test for HER2+ Metastatic breast cancer reoccurrence? My..."
polianad22 | @polianad22 | Dec 3, 2022

When were you 24?

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eku | @eku | Dec 4, 2022

Hello,
there's a detailed discussion about CA 27.29 markers at: https://connect.mayoclinic.org/discussion/ca-27-29-consistently-high-in-the-40s/

Not specific to HER2 +, but some doctors check it and some do not. Mine said she will check it (I have metastatic BC) but it's the scans that she focuses on. There are reports that stress, inflammation, diet changes, etc. might cause some spikes.

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