I have not officially been diagnosed with Crohn's but inflammation was spotted in my ileum 30 cm above my J Pouch for the 1st time in 2008, 16 years after I got the J Pouch. It is still only "suspected" Crohn's because the pattern does not seem to fit typical Crohn's, and there is a suspicion that "backwash" stool and fecal stasis due to my narrowed bowel just above the J Pouch could be causing the pattern of inflammation in my ileum above the pouch.
In effect, my pouchitis has spread to my ileum.