I don't know anything about crohn's meds, can they cause a mass? If not why wouldn't he send you for a scan to see what the mass was? Maybe it's time to seek new drs? I've had 5 GI drs and I thought it was 5 urologist until I recounted and its been 6 of them until I finally have competent, compassionate drs. There are great ones out there, you unfortunately have to keep searching until you find them.
I hope everything is okay and you feel better soon,
What about your PCP, why don't you have him/her order a ct scan stat and go from there. Your nephrologist didn't do anything for you the last time you were there. I am only saying this because of all the things I have been through. My last urologist almost cost me my life because he thought my syptoms were from my kidney stone removal and they ended up being the intestinal infection c diff. By the time his office called me, they hadn't made the diagnosis but told me I needed to come to the hospital right away and have the rest of my colon removed ( I only have 2 inches) and have a permanent bag) . I refused to go there and drove 3 hours to my GI and he scoped me & said my colon wasn't dead as my urologist had said & he took cultures & put me in the hospital. I was so dehydrated that he couldn't sedate me for the scope and they could not get needles in the hydrate me. The next day he called to say I needed to be in isloation because of the c diff and told my husband how close I was to death the day before. So if your dr isn't doing anything for you; please find another one. There is one out there that will help you. I now have the absolute best urologist. I ended up having 5 kidney surgeries in three mos but am now finally better. I want you to get better too!
Ouch, your daughter's nephew? Just say you that you really aren't feeling well, which you aren't and that you would like a second opinion.
I'll say a prayer for you,