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The Mastocytosis Society is a nonprofit organization dedicated to supporting patients affected by Mastocytosis or Mast Cell Activation Disorders as well as their families, caregivers, and physicians through research, education, and advocacy.

The Mastocytosis Society, Inc. (TMS) was founded in 1995 by Bill Abbottsmith, Linda Buchheit, Olive Clayson, Iris Dissinger, Bill Hingst, and Joe Palk. Back then, very little was known about Mastocytosis, and so these pioneering individuals sought to fill a massive void — to find some answers to their multitude of questions about this rare disease. They found one another through sheer determination and extensive research

Many patients who were diagnosed with Mastocytosis in the 1970s, 1980s, and early 1990s were given a very grim prognosis. Up until that time, Mastocytosis was not often considered when physicians were making a differential diagnosis, and many cases were completely missed until the patient died. At that point, signs of the disease were then discovered on autopsy; however, because so little was known about Mastocytosis, it was presumed that Mastocytosis was one of the causes of death, when in fact, often the patient had died of other causes, and the Mastocytosis was an incidental finding! On the other hand, more advanced cases of aggressive Mastocytosis were also recognized during post-mortem exams, leading pathologists to identify all Mastocytosis as having a high mortality rate associated with it. Fortunately, that prognosis has improved as more patients are diagnosed and treated sooner, and more physicians research and treat this disease.

So... What are Mast Cell Diseases???
Mast cell diseases include mastocytosis, where the body produces too many mast cells, and mast cell activation syndrome (MCAS), where even the normal number of mast cells are too easily activated by a trigger to release their contents, called mediators. These mediators can cause a variety of unpredictable symptoms in both children and adults, including skin rashes, flushing, abdominal pain, bloating, nausea, vomiting, headache, bone pain and skeletal lesions, and anaphylaxis. Triggers can be heat, cold, stress (physical or emotional), perfumes or odors, medications, insect stings, and foods. These symptoms are treated with medications including antihistamines, mast cell stabilizers, and leukotriene inhibitors, while anaphylaxis is a medical emergency requiring epinephrine. Mastocytosis can affect skin and internal organs such as the bone marrow, gastrointestinal tract, liver, and spleen. Most patients with mastocytosis have cutaneous (skin) or indolent (benign) systemic forms, but aggressive disease can occur, which may require chemotherapy.

A diagnosis of mastocytosis is confirmed by a bone marrow or skin biopsy. MCAS patients do not fulfill all criteria for mastocytosis but exhibit symptoms, may or may not have increased measurable mast cell mediators (commonly tryptase, histamine or its metabolites) during or shortly after an attack and do respond to the same medications that patients with mastocytosis do.

For more detailed information on Mastocytosis and Mast Cell Diseases please refer to our Research Page (Coming Soon!!!)