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Oncotype DX Test: What does it all mean?

Breast Cancer | Last Active: Jun 14 11:03am | Replies (36)
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@kammcn

My oncologist ordered a MammaPrint when I was first diagnosed and had my biopsy. I didn’t know about all the tests then. The results of my MammaPrint indicated that I was low risk for reoccurrence. It indicated that there was a less than 1% chance of chemo being beneficial. I liked that the results helped dictate my treatment plan. One thing that has confused me is that my KI-67 was 49% on my pathology report but my MammaPrint showed low risk. Has anyone had scores like this?

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Replies to "My oncologist ordered a MammaPrint when I was first diagnosed and had my biopsy. I didn’t..."
windyshores | @windyshores | Jan 3, 2022

I was grade 3, lymphovascular invasion and highish KI-67 at 20%. Oncotype people told me that KI67% is only one part of their evaluation of proliferation factors (I can't remember but there were 5-7). Doctors don't find Ki-67 that reliable. I have wondered if the healing from my biopsy threw it off. You can call MammaPrint and I am sure they will reassure you.

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