[datacruncher01]

From the article, once the tumor is broken up the immune system begins to clean up the area and is able to learn antigens against the tumor. So your immune system would attack cells that are spreading around the body.

[highwaylights]

I think parent’s question was that, as metastasis occurs when tumor cells break off and move elsewhere in the body, is this likely to happen with the targeted areas.

I must admit I’d be curious to know this too as it seems like it could actually speed up terminal cancer if so (though I’m sure they’ve thought of that or I’m just really naive).