How does my doctor know I have mastocytosis?
The symptoms of mastocytosis can be similar to the symptoms of many other health problems. Your doctor may do a skin biopsy to find out what is causing your symptoms. To do a biopsy, your doctor removes a small piece of skin and puts it under a microscope to look for extra mast cells. When an adult gets mastocytosis, a bone marrow biopsy may be needed to look for other blood diseases that might come along with the mastocytosis.
If you don't have a rash but you have other symptoms, such as diarrhea, your doctor may do a blood test or a urine test.
Cutaneous and Systemic Manifestations of Mastocytosis by WA Alto, M.D., M.P.H., and L Clarcq, D.O. (American Family Physician June 01, 1999, http://www.aafp.org/afp/990600ap/3047.html)
Written by familydoctor.org editorial staff