It may mor may not, they may want to do a CT enterography which is a newer test and has more definition. In one of my 17 CT scans in 2007 alone...yeah I can chug that stuff now lol the one I had on my birthday...good ol friday the 13th they were unsure if there was a fistula from my intestines feeding the abscess I had. Do to it not going away I had another done May 4th this showed the abscess was gone...in fact I was still draining anywhere from 10cc-50cc of purulent discharge everyday. Eventually I had Sx to reverse my ostomy and remove the abscess, the DR said the abscess was about half the size of his pinky finger but I had gotten peritonitis from it.
One CT I had in Oct was to rule out appendicitis since I went to a walk in since my GI didnt believe that it was my CD. It did prove it was my CD but it showed kidney stones, no other evidence has shown kidney stones (including all the other CT scans I have had since). To answer you they may see something that is of interest that could actually be non existant or something that warrants more attention.
Dx with Crohn's 1987, symptoms as early as 1984.
Temp iliostomy February 2007, reversed June 2007, Ovarian cysts, migraines, allergies (incl food allergies) , oral allergy syndrome (diff than true food allergies), Asthma, Gall Bladder removed 1999, Inguenal hernia 1987