This is really sad. I think that he might have been misdiagnosed. Or it could be somewhat like Virgil Abloh's case. I don't know if you're familiar with him but he privately battled cancer while simultaneously doing multiple massive projects within the fashion industry including LV.
I am familiar with Abloh.
His statement said that his initial concern was due to issues with his vision. It seems the doctors weren't able to detect it earlier which I find perplexing. Aside from his eyesight, surely there must've been other symptoms? it just doesn't go straight to that stage without some other effects on the body. Which is why I was asking whether it's something only being made known now.
Anyway, I do hope he overcomes it.