How do you know your formal diagnosis? Is it something you remember being told and you wrote it down? Did someone qualified to do so eg your oncologist, ever give you say an email, or letter or a reco...
Also, having read some of your other comments... you are correct in saying that you shouldn't have to be the one to remember your results off the top of your head! Your surgeon, medical oncologist and radiation oncologist should be communicating with each other.