SNB Isolated Tumor Cells or Micromets - What did you do?

happyperidot · June 2019

Now that I've got my head around BMX and reconstruction, I've started to think about the SNB. Nothing was visible on my MRI, but I'm worried about isolated tumor cells (ITC) and micromets. I can't seem to find consistent info about standard of care.

I think ITC indicates complete axillary node dissection and micromets indicate chemo, but I'm not sure. I don't have an MO yet, so no one to ask there. I'll check with my surgeons at next appt, but they'll probably defer to the MO.

What was your experience?

letsgogolf · June 2019

Neither ITC or micromets indicate a dissection or chemo. Your oncotype score will determine your treatment. The biology of your tumor determines if chemo would even be effective. I had 2 separate micromets in my first sentinel node of 8. One was .3mm and the other .7mm and so I had radiation to nodes. My doctor didn't believe that was even necessary but I wanted it for peace of mind. I have read several studies that lead me to believe many times this small spread is from the initial biopsy. The jury is still out on whether or not this happens but it does sound reasonable to me.

SummerAngel · June 2019

ITCs are considered node-negative and don't indicate any additional treatment above node-negative. From what I understand, most Oncologists rely on the Oncotype results to decide on chemo, even with up to 3 positive nodes.

happyperidot · June 2019

Thank you both for the quick answers.

OnTarget · June 2019

I had isolated tumor cells in one of my 4 SN's and as was stated above, it is considered node negative. My Oncotype score was a 16, so no chemo for me, and they weren't going to do radiation because it is considered node negative.

SNB Isolated Tumor Cells or Micromets - What did you do?

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