Systemic Mastocytosis: Chronic Characteristics and Symptom Variability
This disorder encompasses various subtypes, each presenting unique challenges and symptoms. These cells are made in the bone marrow, where they usually help with allergic reactions and inflammation. In most cases of systemic mastocytosis, these mast cells have a change in a gene called KIT. Igor Suka / Getty Images The KIT gene gives instructions for making a protein that tells mast cells when to grow and divide. This can cause symptoms like itching, flushing, stomach pain, or severe allergic reactions....