Just want to make sure you understand that the surgical pathology on your colon cannot definitively rule out Crohn's.
There are no guarantees; my pathology came back as UC, my 2 GIs and my surgeon (world-renown crohns surgeon) all said that I had UC but I developed chronic pouchitis/crohns. Other people have inconclusive diagnosises and still go ahead with the surgery and their pouches are fine.
I'd just discuss your options with your surgeon and try to make the best decision for yourself.
That's one of the nice things about
the 3-step surgery because it gives you more information and time to make a decision about