I am 4 years out from breast cancer and still taking tamoxifen a mass was found in the edometrial lining after annual exam biopsy has been your thoug?

Wait 4 biopsy result: Await for endometrial biopsy result. There is a risk to develop endometrial hyperplasia and endometrial cancer while on tamoxifen- the risk will be higher if you are older than 65 years old. How old are you ? Do you still have your period? If you do not have any more period/post menopausal. - your oncologist can switch you to aromatase inhibitor and stay on the aromatase inh for 5 years. D/w md.

Endometrial biopsy: While tamoxifen does decrease the recurrence rate of certain breast cancers, there is a small but real increase in cancer of the uterine lining. For this reason, a biopsy should be performed at any sign of changes in this area. It can usually be done via brushings, i.e. Without incisions, in the gynecologists office.