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Mast cell activation syndrome
Immunological condition
Mast cell activation syndrome
Mast cell activation syndrome (MCAS) is one type of mast cell activation disorder (MCAD). MCAS is an immunological condition in which mast cells, a type of white blood cell, inappropriately and excessively release chemical mediators, such as histamine, resulting in a range of chronic symptoms, sometimes including anaphylaxis or near-anaphylaxis attacks. Primary symptoms include cardiovascular, dermatological, gastrointestinal, neurological, and respiratory problems.
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