MCAS (Mast Cell Activation Syndrome): Why It Is Possible To Have It And Not Know

This video discusses the mast cell activation syndrome (MCAS) and highlights the difficulties patients and their providers face in the recognition and diagnosis. The common symptoms of MCAS and its less severe symptoms are reviewed, giving viewers insight into the wide variety of presentations this disease can have. An example of the misdiagnosis and eventual rescue of a patient suffering from MCAS is related and this provides a clear picture of how misdiagnoses are created and makes viewers aware of potential errors they can encounter while seeking answers to the variety of overlapping symptoms MCAS can have and that frequently cause it to be confused with other diseases with similar presentations.