My absolutely rough guess is that if they haven't mentioned it to you, especially with normal WBC counts, it's just a possibility they're ruling out in their differential. My evaluation and Tx notes contain a lot of possibilities I'm ruling out. If there's even a hint of a significant disorder or disease I note it. I see a lesion in the mouth when doing my oral peripheral exam and I note all sorts of things about it and the likelihood of oral cancer, even if extremely slight. Then, I refer to people who know a lot more about cancer than I do!
I wouldn't mention it until the doctors mentioned it to me. You don't have a Dx, and if at some point you do then at that time you can bring it up and I'm sure the scholarship people will understand.
I would, on the other hand, be extremely proactive about getting with my doctor, if only to alleviate the stress and concern.