I’m new to this site after being diagnosed with HER2+ breast cancer in August this year. I’m having chemotherapy as first line of treatment. At first, I was obsessed with tumour size (which turned out to be 39mm after MRI). However, I’ve taken a closer look at my first oncology report and starting to obsess about my KI-67 score which is 50% - apparently very high with poorer prognosis.
I would rather spend what little time I may have left enjoying life rather than consumed it’s worry. Anyone have any words of advice or positive stories about high KI 67 score, please?
I think the first thing to remember is that every type of breast cancer is different. You have a HER+ positive tumor and that’s always going to have a higher KI-67 score. It’s to be expected actually which is why you are treated differently than a hormone positive tumor. You have an immunotherapy called herceptin which is hugely successful thanks to that high score and that high score will also mean it will more than likely respond very well to chemotherapy. The parameters of your breast cancer have changed significantly in the last ten years. So personally I’d be a little more nervous with that score if it was just a hormone positive tumor (although we can do things with that, too) but not with an HER+ one. And if you also have estrogen you may even at this point have a better prognosis than someone with just a hormone positive tumor but no HER+. That’s how much herceptin has changed the game.