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Old 03-30-2012
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Question Arthus reaction Biopsy

what can i see if i biopsied arthus reaction? Immune complex with macrophage?
also fibrinoid necrosis or is it just vasculitis?
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Old 03-30-2012
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Check this out -

It is type 3 hypersensitivity reaction.

"Typical of most mechanisms of the type III hypersensitivity, Arthus manifests as local vasculitis due to deposition of IgG-based immune complexes in dermal blood vessels"
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Old 03-30-2012
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Plus necrosis and edema....
"Disease is very old, and nothing about it has changed. It is we who change as we learn to recognize what was formerly imperceptible." JMC
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Immunology-, Pathology-

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