Here is some Research I came across...
Hey Everyone! A friend of mine who had Breast Cancer about 2yrs ago, got some blood results recently and they showed a high reading of Oestrogen and she was confused as she is on Tamoxifen. So we ...
Forum Discussion
Hi Mel, hope you are doing OK. I saw that too and it seems to be a particular issue with the aromatase inhibitors but it is interesting that your friend on Tamoxifen is getting high readings. It's certainly a concerning finding that some of these tumours are evolving to produce their own type of oestrogen :/