Anyone have Gamma Knife to treat Brain metastasis?

Posted by mssewest @mssewest, Nov 25, 2025

I am stage 4 metastatic her2 positive breast cancer that has spread to the brain. Has anyone had gamma knife to the brain and had it only shrink the lesions some and the lesions not dissolve?

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jmab | @jmab | Nov 26, 2025

I have no experience with the gamma knife but just wanted to say that I'm very sorry you're going through this & am sending you best wishes for a full recovery!

Chris, Volunteer Mentor | @auntieoakley | Nov 29, 2025

@mssewest I am sorry that you are going through this new adventure in breast cancer. You are so incredibly brave to even try this. I am not sure I could do this, no matter how relentless this disease feels sometimes.
My heart sank when I saw this post, I always hoped that you were doing really well on the trial protocol.
Did your doctors discuss if there is a possible next step to resolve this?

jardinera25 | @jardinera25 | Nov 30, 2025

Has anyone suggested having Proton treatment instead of Gamma radiation?
Hugs to you.

Colleen Young, Connect Director | @colleenyoung | Dec 9, 2025

@mssewest, did the shrinkage of the lesions on the brain help with any symptoms? What is the next step for you?

bonzai1958 | @bonzai1958 | Mar 18 10:47am

hello,

I was found Breast Cancer in 2020. After surgery / chemo / radiation, all was fine until Jan. 2023, I was diagnosed having metastasis to brain (HER2-Positive). Then I went thru brain / cerebellum surgery and SRS radiation (3 times, very intense). I am not sure SRS is Gamma knife or not. Then I am fine in 2024 & 2024, travelling abroad twice, but more recently I have a new sympton of Slurred Speech. The root cause of speech problem is yet to be determined, either by radiation netcrosis or by tumor recurrence. Have experienced several Brain MRI and Pet Scan, yet still indeterminant at the moment.