Yes, you wrote "According to the doctors at the Cleveland Clinic, ulcerative colitis is only located in the large intestine...no where else. If you have ulcers in other parts of your intestinal tract, you have Crohn's. "
That is incorrect as UC can and often does affect the rectom not just the colon....the large intestine/colon and the rectom are 2 seperate parts of the GI tract.
With crohns, the sores are referred to as polyps.
polyps are not the only source of getting fistulas, from my understanding because with crohns the inflammation can go through the many layers of the intestinal lining leading to a fistula.
You also wrote this.... "the large intestines and, when the colon is removed, they may not have much problem with Crohn's after that."
That is also incorrect, even when a crohnie gets part of the small intestine removed (called a resection) CD can easily re-appear in the small intestines again, and getting your colon removed gives you a greater chance of crohns appearing in your small intestines.
I'm a crohns-colitis sufferer for the last 17 yrs now myself.
Hopefully your CD will stay in control, but at the first sign of problems be sure to see your doc, of course wearing a bag will eliminate the common complaints of blood, frequency and those types of issues, but stay on guard if you experiance any changes in anything.
Since many crohnies still have to be on meds even when they get their colons removed because of the CD attacking their small intestines, most commonly.
My bum is broken....there's a big crack down the middle of it! LOL :)