So sorry to hear this, I was sure you had managed to beat it (if I'm not mistaken, you did share "good" news a while ago about your battle against cancer). I'll echo the others, you are a really thoughtful and highly respected contributor -- you're one of a handful of SSPers with whom I very rarely disagreed, regardless of the subject!
Hoping for a positive outcome
if nothing else you know you have a bunch of fellow SSPers sending positive waves your way!