You still should want a biopsy. I'm at a loss to understand why they did a capsule endoscopy instead of one via tube so they could have snipped some sample tissue of anything that looked odd.
Bingo, excellent thinking! You know, I always ask people with mystery immune conditions about their family history - but with all your testing to discuss, I didn't get to that yet. Now you must also research all your relatives, both sides - not only for Familial Mediterranean Fever.. which it's not even known yet if that's what she has. Could be a virus, because FMF doesn't cause high lymphocytes AFAIK. A virus can cause high lymphocytes and low neuts.
Also, expect to have trouble convincing some docs. Most just match symptoms and don't do much sleuthing.
So, we need to also figure out when to get you tested at a time when your CRP, ight be high. (You might have noticed that I'd said *sometimes* above, in the phrase "can sometimes have a low CRP".)
Current theory: you have the mystery kind of Castleman's - which might even be unrelated to the other kinds of Castleman's.
So this may seem off topic but it's not my daughter has been really sickly on and off since birth I stay home with her but she gets sick a lot way more then normal baby her pediatrician says, she gets waves of crazy high fevers too like 104-105 and we were in hospital with her over weekend saw her dr today who wants her tested for cyclic neutropenia. I read up Bc I knew I had read that phrase somewhere and it clicked my flow cytometry test showed sever granulcytopenia but healthy cells then upon retest it was normal but my last three blood draws all exactly three weeks apart showed neutrophil percent low and lymphocyte percent high then my dr just rechecked Bc lym was high (8 days after last test) and it was high end of normal so let it go. But this disease makes sense I read in severe cases can cause spleen and lymphnodes to swell and causes ulcers in gi tract and mouth mimicking crohns. Aso I read it is most common among Jewish ppl and I'm half Jewish (my moms family is like off the boat Jewish). What do you think?
"...which pretty much rules out castlemans or anything auto immune my dr says."
I don't know that I'd be satisfied with that. E.g.: "The clinical manifestations of MCD are heterogeneous..."
http://www.jhoonline.org/content/2/1/19
which means that *maybe* a patient with Castleman's can sometimes have a low CRP. That's just a guess.
(I'll be back later.)
Also you said shotty nodes could be several causes, what are they? I can't really find anything online about that
Update.. So got all my blood test back negative for any inflammatory markers, negative for lyme, no sign of infection, c reactive was >.1 (very low) ana negative, which pretty much rules out castlemans or anything auto immune my dr says. I have capsule endoscopy today to check small intestines for lymphoma or abnormalities. Spleen is more swollen today (very sore and hard to sit up right) so I guess were back to lymphoma. My cbc was norm besides low mchc. I'm seeing a surgeon Monday on advice of obgyn they are most likely going to laporscopically operate to see what going on with pelvic masses and find origin of bladder fistula. Do you know any other cancer besides lymphoma to cause enlarged nodes and spleen (spleen been slowing growing for 18 straight months)