How do you know if it’s mastocytosis or MCAS?
I’ve been diagnosed with MCAS for 5years after getting ill 12years ago. I got diagnosed with MCAS from a positive 24hr urine test, symptom score, and I think high tryptase, but I can’t remember the result as I was so ill at the time that everything back then is foggy.
I have had improvement being on lots of antihistamines and especially Xolair although my daily life is still effected. Mostly now by cough triggered by eating, neurological symptoms, and an ill feeling in my body mostly after eating. Rashes are reduced to only being triggered by the heat. Without medication I have chronic diarrhoea, weird rashes especially on my neck, lip/throat swelling, heavy periods, and have had an unexplained anaphylaxis
Reading up on mast cell diseases the symptoms of systemic mastocytosis and MCAS are identical
My dr has never even mentioned mastocytosis to me, how do I know it’s not that? Is the only way to tell a bone marrow biopsy or is there other tell tale signs and differences?