| D006969 |
Hypersensitivity, Immediate |
Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability. |
Atopic Hypersensitivity,Hypersensitivity, Atopic,Hypersensitivity, Type I,IgE-Mediated Hypersensitivity,Type I Hypersensitivity,Atopic Hypersensitivities,Hypersensitivities, Atopic,Hypersensitivities, IgE-Mediated,Hypersensitivities, Immediate,Hypersensitivities, Type I,Hypersensitivity, IgE-Mediated,IgE Mediated Hypersensitivity,IgE-Mediated Hypersensitivities,Immediate Hypersensitivities,Immediate Hypersensitivity,Type I Hypersensitivities |
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| D000707 |
Anaphylaxis |
An acute hypersensitivity reaction due to exposure to a previously encountered ANTIGEN. The reaction may include rapidly progressing URTICARIA, respiratory distress, vascular collapse, systemic SHOCK, and death. |
Anaphylactic Reaction,Anaphylactoid Reaction,Anaphylactoid Shock,Shock, Anaphylactic,Anaphylactic Reactions,Anaphylactic Shock,Anaphylactoid Reactions,Reaction, Anaphylactic,Reaction, Anaphylactoid,Shock, Anaphylactoid |
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| D001183 |
Arthus Reaction |
A dermal inflammatory reaction produced under conditions of antibody excess, when a second injection of antigen produces intravascular antigen-antibody complexes which bind complement, causing cell clumping, endothelial damage, and vascular necrosis. |
Arthus Phenomenon,Phenomenon, Arthus,Reaction, Arthus |
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