@maliamd, I moved your 2 discussions into one so that members can follow your story and have all the details. I'm glad that you have confidence in your team. You're quite right that many factors go into creating an individualized treatment plan.

About HER2 positive breast cancer, I found this excerpt from an article from Mayo Clinic (https://www.mayoclinic.org/breast-cancer/expert-answers/faq-20058066)
"Treatments that specifically target HER2 are very effective. These treatments are so effective that the prognosis for HER2-positive breast cancer is actually quite good.
...
Whenever breast cancer recurs or spreads, the cancer cells should be retested for HER2 as well as for hormone receptor status, as these can change from the original diagnosis."

Maliamd, was the HER2 status of your diagnosis detected at the initial diagnosis of IDC 4 years ago or only with the detection of recent metastasis? Have anti-HER2 drugs been discussed as a treatment option? I look forward to hearing what you learn after this week's round of imaging.