With a multitude of symptoms, nailing down a diagnosis for MCAS takes time—using certain guided steps can create a path that heads in the right direction.
Mast cells release chemical mediators to coordinate protection against infection or promote wound healing. Some of the mediators can cause allergy symptoms.
More than 22 months after taking her first dose of the Pfizer COVID-19 vaccine, musician and singer Emaline Delapaix was diagnosed with various systemic disease