I'm glad I could help @CarrieP...even if just a tiny bit. You'll find yourself more familiar with the different terms used, but in a nutshell, the stage is how large it is and the grade is how fast it grows. So for stage, a studio apartment versus a five bedroom Mc Mansion and for grade, a bicycle versus a VW or a porsche. There are many types of breast cancer, but the majority are either hormone (estrogen and progesterone) driven, or not. My type feeds on estrogen, so I'll be on a hormone suppressant for the next ten years, so if any rotten cells are kipping somewhere and re awaken in the future, they won't have any to feast on. Yours is not hormone driven, so you won't need these. There are information sources available via BCNA, but I'm a Luddite, and have no idea how to direct you to them. Perhaps the ever helpful other members will hop on and help with that. Avoid Dr Google as the information is often outdated, and in any event, may not even apply to you. Big (((hug)))..Ally.