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LCIS: should I take Tamoxifen?

Breast Cancer | Last Active: Jan 8 6:31pm | Replies (25)

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@mayo101

I was diagnosed with LCIS via a stereotactic biopsy in right breast. Surgical biopsy confirmed it. Following that, I chose to have a preventative double mastectomy, which led to the discovery of LCIS in the left breast as well. I thought that the double mastectomy would do away with the need for Tamoxifen, but my oncology NP is recommending I take tamoxifen 5mg for 5 years as an extra layer of protection. I feel that that is an overkill. The extra benefit doesn’t seem to outweigh the risks in my case. I would appreciate any inputs.

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Replies to "I was diagnosed with LCIS via a stereotactic biopsy in right breast. Surgical biopsy confirmed it...."

Hi @mayo101, I moved your question about taking tamoxifen after preventative double mastectomy for LCIS to this existing discussion:

– LCIS: should I take Tamoxifen? https://connect.mayoclinic.org/discussion/lcis-should-i-take-tamoxifen/

I did this to connect you with other members who also faced this decision like @nycoceans @cindylb @sparklegram @betsyk @batm @lisman1408 and others.

This is a great companion discussion to the earlier, related discussion you started here to help you decide on mastectomy:
- LCIS what treatments did you choose? https://connect.mayoclinic.org/discussion/lcis-and-double-mastectomy/

Keep in mind that everyone reacts differently and not everyone has side effects. Are you concerned about potential side effects? If I recall, you are in your early 50s. Does your oncologist feel that because of your age, tamoxifen reduces your risk of recurrence?