once again, ER+her2+ breast cancer is found to behave differently than ER-her2+

[carolanno]

Thanks a lot, Lani. I'm new to the forum so I'll look at some of your older posts on this topic. So I guess this means that estrogen emerged as a stronger growth factor for my cancer cells after being dormant for 10 years. Even though it appears that my cells are at least partially resistant to Herceptin, my onc. says there is evidence that it can still be effective w/another chemo agent (Navelbine). I will consider an AI after that, but at 54 already have severe osteoporosis in lumbar spine so I'm not too keen on that idea...I had been trying to avoid osteoporosis drugs...
I'm so grateful to have this forum and access to people like you who are so knowledgeable and up on the latest research. Are you trained in the medical/research field?