A member asked:

Is there any relationship between a pterygium and mast cell activation syndrome?

A doctor has provided 1 answer

No: A pterygium is a triangular wedge of fibrovascular tissue of the conjunctiva that encroaches on the cornea. It has nothing to do with mast cell activation or anaphylaxis. Pterygium is a proliferative disorder whose pathogenesis and cause has not been fully elucidated; but exposure to ultraviolet light is believed to play a role in its formation.

Answered 12/20/2013

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