Wow. Not that fast tho. It’s aggressive with a low rate in reaching and maintaining a 2-5 year remission after treatment starts. This sounds like it went unchecked for well over a year.
It’s sneaky. The first stages it flies under the radar. Some people are lucky when it’s detected early. I guess RBG is one of those. But to many times it’s detected later, and that is when it’s aggressive.