Medical Definition of Arthus phenomenon

1. A form of immediate hypersensitivity resulting in erythema, oedema, haemorrhage, and necrosis observed in rabbits after injection of antigen to which the animal has already been sensitised and has specific IgG antibodies. The reaction is caused by the inflammation that results from the deposition of antigen-antibody complexes in tissue spaces and in blood vessel walls that activate complement, most of the damage seemingly being due to the polymorphonuclear leukocytes that phagocytise the deposits and release lysosomal enzymes. The phenomenon, described by Arthus, was in rabbits, but similar reactions (Arthus-type reactions) are observed in guinea pigs, rats, and dogs, as well as in humans. Synonym: Arthus reaction. (05 Mar 2000)

Lexicographical Neighbors of Arthus Phenomenon

Arthur Mitchell
Arthur Neville Chamberlain
Arthur Rimbaud
Arthur Robert Ashe
Arthur Rubinstein
Arthur Schlesinger
Arthur Schlesinger Jr.
Arthur Schopenhauer
Arthur Seymour Sullivan
Arthur Stanley Jefferson Laurel
Arthur Sullivan
Arthur Symons
Arthur Tappan
Arthur Tatum
Arthur Wellesley
Arthus phenomenon (current term)
Arthus reaction
arti
artiad
artic
artichoke
artichoke
artichokes
artichoke heart
artichoke plant
article
article
articled
articles
articles of agreement

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