My mom was diagnosed with brain mets back in December. The pattern of her breast cancer went from her breast to bones and then to the brain. They were surprised of this because the doc says it's not the normal pattern of breast cancer. BUT then again...beacuse she is HER2 +, they weren't surprised. Anyway..she went for full brain radiation and has had 2 brain scans since then. The tumors were all over her brain with the largest ones being almost 3 cm. The last brain scan showed that all the "small" tumors have shrunk down to nothing. The bigger ones have shrunk down to 1cm. She's been told that there is no cure and that eventually they will come back. How long before they do come back? They have said over and over that because she is HER2+, her cancer is very aggressive and she may be below average. From what I understand, these tumors in her brain can stay dormant for up to 18 months, but with her being below average, what does 18 months really mean?