I once asked this same question on here...until someone gave me a somewhat logical answer:
If your blockage symptoms tend to wax and wane quite dramatically, then most likely its nearly all inflammation that is causing the narrowing; If your blockage symptoms tend to be consistant for months and very slowly get worse...then scar tissue may be playing a big role.
Alternatively, depending on your GI doc, another quick way to test for scar tissue vs inflammation is to try a short round of prednisone during a blockage flare. If this helps dramatically, then probaby alot of the narrowing was due to inflammation
Just a few good ol tricks to assist with diagnosing rather than going thru big procedures :)
Current Meds: Remicade 4 bottles every 2 months, Entocort 9mg daily, Methotrexate 15mg SC weekly