I'm sorry Ron, I have no idea. If it helps any, last year 2013 I was diagnosed with Ulcerative Proctitis. This year, I had my colonoscopy and there was no mention of the Ulcerative Proctitis. All that was mentioned was Ulcerative Colitis and IBD. But, there was no inflammation even with biopsies.
Only thing I can think of is maybe they didn't find any inflammation from the biopsies on you?