Forum Discussion

StrongCoffee's avatar
4 years ago

Ki67 results versus results from oncotype, etc tests

Hi!

First time stepping out from lurking and I just want to say thanks to everyone who has posted/commented anything on here. It has been so good to read about real (and Australian) BC experiences. I promise I'm going to add some photos in the Choosing Reconstruction group soon to pay forward the support.

I'm 45yo and 2.5 weeks ago had a single mastectomy with immediate implant reconstruction plus sentinel node biopsy on my right side after a diagnosis of invasive ductal carcinoma. Due to the size, it was hoped my nodes would be clear - which they thankfully were, hence the immediate reconstruction. That took radiotherapy off the treatment table, as I'd hoped when opting for a mastectomy.

I had no symptoms of cancer. I had a small lump pop up, red and sore, earlier this year. It was nowhere near my cancer and has since been determined to have been a cyst. But in checking it out, they found a patch of microcalcifications. Nothing could be seen on ultrasound nor palpated. I had a sterotactic biopsy and mri prior to surgery.

Following surgery, I had my first appointment with the medical oncologist this week and, unexpectedly, the team had decided that I should be given the option of Chemo. So now my head is swimming with statistics and so on.

Specifics of my tumour is 35mm at its widest (which matched the MRI, which had it at 35mm x 25mm x 10mm - quite flat which I assume is why no lump could be felt). It is strongly ER and PR positive. I have a history of lean PCOS (a hormonal condition) and taking the pill, Yasmin - so some hormonal risk factors. It is HER2 negative. There were no other tumours etc found in the rest of the breast and as mentioned, nodes clear.

So hormone therapy is 100% first line of attack for keeping it away. However, due to my younger age (I don't feel that young, but in the breast clinic waiting room I could see that I am in the world of breast cancer) and the size of the tumour, they wanted to give me the option of TC chemo.

I'm definitely in the 'oncotype testing recommended' group as it is not clear cut that chemo will do that much.

So my question. My Ki67 was 9%. Which is low (just). I'd love to hear from anyone who had any form of oncotype (or the other similar ones) testing. How did your Ki67 compare to your final tests?

I'm thankfully in a position to be able to afford the test - it would cost less than days off for chemo now that I've used all my sick leave. Just concerned as so far this has all been a slow process and I don't want too many more delays.