A member asked:

I need to ask the defenention of arthus reaction and what is the symptoms of arthus reaction ?

A doctor has provided 1 answer

Arthus reaction: This is a local antibody-mediated hypersensitivity reaction in which antibody-antigen complexes which fix complement are deposited in the walls of small vessels causing acute inflammation with an infiltration of neutrophils. Characteristic of type iii hypersensitivity reactions. This can produce swelling, tissue necrosis to gangrene, and so on.

Answered 12/13/2013

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