Hi Muon,
The real specialty of the Dr who is taking care of my possible case of MCAS is pediatric allergologist.
This Dr is a good colleague of another Dr who was a very good expert a few years ago on all the Mastocitosis desorders. In fact, there was a time when they were working together and that is why this pediatric allergologist was trained in this type of Disorders.
I reached to talk by phone with the Dr who was a good expert on these desorders (now he's retired since a few years ago). And he recommended me to visit his colleague for now (the pediatric allergologist).
This experienced Dr with whom I spoke by phone worked closely and collaboratively with Dr. Mariana Castells of Harvard Medical School.
This pediatric allergologist has the ability to refer me to another hospital not too far away in which they do devote themselves as part of their work to mast cell disorders. In this other hospital they are real experts on Mast Cells Disorders.
So, for now I must follow his instructions. I think he wants to try everything he can. Before redirecting me directly to the other hospital.
When the time comes I will ask him to refer me to the other hospital.
I think that in the hospital where I am going for now (to visit this pediatric allergologist), they do not have the proper techniques to detect the appropriate biomarkers for an MCAS. For instance, N-metyl-Histamine. Or the one you are asking me (11-b-PGF2a). Detected in a 24h urine test.
For the moment he is trying to find any relevant data with my levels of triptase at different moments (in blood). And other biomarkers such as catecholamines, metanephrines and 5hiaa on 24h urine tests.
Will continue updating...