Arthus reaction


Also found in: Medical, Wikipedia.

Arthus reaction

[′är·thəs rē′ak·shən]
(immunology)
An allergic reaction of the immediate hypersensitive type that results from the union of antigen and antibody, with complement present, in blood vessel walls.
References in periodicals archive ?
Local reactions included limb pain, limb swelling, cellulitis, lymphadenitis, and Arthus reaction. The researchers also looked for Guillain-Barre syndrome through day 42 after vaccination.
(2) As the likelihood of an episode of ENL increases after the initiation of treatment (3) and many of the histological features of ENL resemble an experimentally induced Arthus reaction in animals, (4) it has been suggested that release of M.
* type 3 reactions (Arthus reactions), occurring when IgG binds to a dissolved foreign substance and precipitates as an irritating, inflammatory complex; they occur in hours to a day and offer protection against toxins;