Hi Patricia!
I'm understanding your quandry here and it's truly hard to figure it all out, isn't it?
As to the autoimmune markers, I'm right there with you! We've been investigating my three children. It looks like my daughter has dodged the bullet!!
Her labs returned with no apparent autoimmune involvement - her previous elevated thyroid T4 and T3 both came back completely NORMAL! She was with more antibodies to her thyroid than I was and they are now all NORMAL!! So, that's a wonderful blessing!! She also is showing no alterations with any kind of autoimmune markers!!! And best of all, her tryptase came back 1ng! YIPEEEE!!
Yet my two sons are a different ballgame
Both have some autoimmune markers. The one who is the elder of the two we have found the MC aggregates within his intestines so we have NO DOUBT that he has masto. Yet his tryptase is 2.6ng! He does also have some vague RA markers, but not all of them so he can't be diagnosed with RA. He also has an elevated ANA which has improved once we put him on ketotifen. My other son is only beginning his investigation so we've not had a colonoscopy run on him yet. He's got a raised ANA and has thyroid dificiency and so far, no RA markers. Yet his tryptase was higher than mine!! His is 5.5 ng and mine is 4.6ng!!
What my theories are, and this is what the Harvard geneticists also feel is that with my son's RA markers, it isn't that he has RA and it's triggering the masto, but that he has mastocytosis, yes, but the RA markers show where the masto is causing inflammation. Dr. Castells had told me a little while ago that they know that MCs are involved in inflammation and the inflammatory processes, but how exactly this occurrs within mastocytosis they are not quite sure. But in looking at my case versus my elder son's case, my markers are generalized like may younger son's and in my case the biopsies show generalized inflammation throughout my body. And what we are seeing is that with my son, his inflammation seems to be limited to his connective tissues - but without biopsies this is only what we suspect.
Yet, masto, although it is a cell involved in inflammation, is not considered an inflammatory disease and this may explain why I don't show any inflammatory markers, and I believe my sons don't either. The chronic inflammation is present, but it's not an inflammatory disease per se and it behaves differently due to different mechanisms which are behind the inflammation.
So, this could be what is happening with your husband, Patricia. Yet here's the problem - THERE IS NO STUDY ON THE AUTOIMMUNE FACTOR!! NOBODY knows what is going on here with us!! NOBODY!! So we patients and even the authorities are totally walking blind for not one study is out there to guide us!!!
Now as to this study, it's certainly interesting and I'll have to write to you about it. In one of the studies on my and my son's immunohistochemical testing we also showed a negative c-kit! The pathologist said he wanted to retest this to make certain for he found this HIGHLY unusual!!
Hmmmmmmm!! Always a mystery!!
Lisa