Mast cell activation & mastocytosis
Mastocytosis et syndroma activationis mastocytorum · Aktivace žírných buněk a mastocytóza
What it is
Too many or too twitchy mast cells release mediators unpredictably.
Symptoms & signs
- Flushing
- hives
- abdominal cramps
- diarrhoea
- palpitations
- anaphylaxis without a clear trigger
- bone pain
🚩 Get help if…
- call 112 / 911 now Swelling of lips or throat, wheeze or trouble breathing
- call 112 / 911 now Fainting or feeling faint with flushing
- see a doctor soon Bone pain or a broken bone after little force
- see a doctor soon Weight loss, big liver or spleen or swollen nodes
Where it strikes
Medical treatment
- H1 and H2 antihistamines
- cromolyn sodium
- midostaurin or avapritinib for systemic disease
- adrenaline auto-injector
Natural & lifestyle
- Trigger avoidance (heat, alcohol, NSAIDs, stress)
- low-histamine diet trial
- written emergency plan
Emerging & experimental
- KIT D816V inhibitors (bezuclastinib)
- anti-Siglec-8 (lirentelimab)
Alternative, off-label & anecdotal
Approaches used outside the guidelines, with what their supporters report and what testing has found so far.
- Quercetin and luteolin — laboratory mast-cell stabilisers; small studies early / small studies
- DAO enzyme supplements — patients report fewer food reactions; untested anecdotal / traditional
ICD codes
- ICD-10 Q82.2
- ICD-11 2A21 Mastocytosis