type III hypersensitivity
A form of immediate hypersensitivity resulting from the exposure to excessive amounts of antigens in which antibodies bind to the antigens and produce antibody-antigen complexes. These activate complement and trigger an acute inflammatory response with subsequent tissue damage. Examples: poststreptococcal glomerulonephritis, serum sickness, and farmer\'s lung disease.

Microbiology. . 2009.

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  • type III hypersensitivity — hypersensitivity due to formation of circulating antigen antibody complexes and their deposition in tissues; see type III hypersensitivity reaction, under hypersensitivity reaction, at reaction. Called also immune complex–mediated h …   Medical dictionary

  • Type III hypersensitivity — Infobox Disease Name = PAGENAME Caption = DiseasesDB = ICD10 = ICD9 = ICDO = OMIM = MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = D007105 Type III hypersensitivity occurs when antigens and antibodies are present in roughly equal amounts …   Wikipedia

  • Type IV hypersensitivity — Classification and external resources MeSH D006968 Type IV hypersensitivity is often called delayed type hypersensitivity as the reaction takes two to three days to develop. Unlike the other types, it is not antibody mediated but rather is a type …   Wikipedia

  • type III — local or general inflammatory response due to formation of circulating antigen antibody complexes and their deposition in tissues; the complexes activate complement and other inflammatory mediators, initiating processes including increased… …   Medical dictionary

  • Hypersensitivity pneumonitis — Classification and external resources Micrograph of hypersensitivity pneumonitis. Lung biopsy. Trichrome stain …   Wikipedia

  • hypersensitivity — In immunology, a state of excessive and potentially damaging immune responsiveness as a result of previous exposure to antigen. If the hypersensitivity is of the immediate type (antibody mediated), then the response occurs in minutes; in delayed… …   Dictionary of molecular biology

  • immune complex–mediated hypersensitivity reaction — type III hypersensitivity r …   Medical dictionary

  • immune complex–mediated hypersensitivity — type III h …   Medical dictionary

  • Diabetes mellitus type 1 — Diabetes type 1 Classification and external resources Universal blue circle symbol for diabetes.[1] ICD 10 …   Wikipedia

  • immediate hypersensitivity reaction — 1. type I hypersensitivity r. 2. occasionally, any hypersensitivity reaction mediated by antibodies and developing rapidly, generally in minutes to hours (i.e., type I, II, or III hypersensitivity r.), as distinguished from those mediated by T… …   Medical dictionary

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