| FFDD | focal facial dermal dysplasia |
|---|---|
| MIDAS | microphthalmia-dermal aplasia-sclerocornea [syndrome]; Multicenter Isradipine Diuretic Arteriosclero... |
| UDN | ulcerative dermal necrosis |
| HP | Hypersensitivity Pneumonitis = Extrinsic Allergic Alveolitis |
| CBH | chronic benign hepatitis; cutaneous basophilic hypersensitivity |
| vasculitis, hypersensitivity | Heterogeneous group of disorders characterised by a vasculitic syndrome presumed to be associated with a hypersensitivity reaction following exposure to an antigen such as an infectious agent, a drug, or other foreign or endogenous substance. (12 Dec 1998) |
|---|---|
| respiratory hypersensitivity | A form of hypersensitivity affecting the respiratory tract. It includes asthma and hay fever. (12 Dec 1998) |
| milk hypersensitivity | Allergic reaction to milk (usually cow's milk) or milk products. In infants the hypersensitivity is manifested by colic, vomiting, diarrhoea, rhinitis, wheezing, etc. Milk hypersensitivity should be differentiated from lactose intolerance, an intolerance to milk as a result of congenital deficiency of lactase. (12 Dec 1998) |
| contact hypersensitivity | <pathology> A type of immune-mediated inflammatory skin rash that results from an allergy to a particular substance (for example jewelry dermatitis, poison ivy, neomycin ointment, etc.). (27 Sep 1997) |
| hypersensitivity | <immunology> A state of altered reactivity in which the body reacts with an exaggerated immune response to a foreign substance. Hypersensitivity reactions are classified as immediate or delayed, types I and IV, respectively, in the Gell and Coombs classification of immune responses. (18 Nov 1997) |
| hypersensitivity, delayed | An increased reactivity to specific antigens mediated not by antibodies but by cells. (12 Dec 1998) |
| 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. (12 Dec 1998) |
| hypersensitivity pneumonitis | <radiology> Aka: chronic extrinsic allergic alveolitis, pathology: proliferation of epithelial cells, elaboration of reticulum fibres, findings: interstitial reticulonodular pattern (basilar distribution), volume loss (cicatrization atelectasis) in upper lobes, pleural effusion (rare), lymph node enlargement may occur (12 Dec 1998) |
| hypersensitivity reaction | <immunology> The bodys response to an allergic stimulus. This can be localised to one area or generalised and may include: rash, itching, hives, swelling, difficulty breathing, and/or low blood pressure. (27 Sep 1997) |
| hypersensitivity vasculitis | An acute form of vasculitis which may affect the skin only, but also may involve other organs, with a polymorphonuclear infiltrate in the walls of and surrounding small (dermal) vessels. Nuclear fragments are formed by karyorrhexis of the neutrophils. See: leukocytoclastic vasculitis. Synonym: allergic angiitis, hypersensitivity vasculitis. (05 Mar 2000) |
| delayed hypersensitivity | <immunology> Hypersensitivity (increased reaction by the body to a foreign substance such as an antigen or allergen) that does not appear until 24 to 48 hours after the body is exposed to the foreign substance. (09 Oct 1997) |
| delayed type hypersensitivity | <immunology> Hypersensitivity (increased reaction by the body to a foreign substance such as an antigen or allergen) that does not appear until 24 to 48 hours after the body is exposed to the foreign substance. (09 Oct 1997) |
| DNAse i hypersensitivity site | <molecular biology> A site on a DNA molecule that is especially prone to being cut apart by the endonuclease enzyme DNase I, which breaks down DNA into smaller fragments by cleaving phosphodiester bonds. These sites tend to be near active genes, which are regularly transcribed. (09 Oct 1997) |
| drug hypersensitivity | Immunologically mediated adverse reactions to medicinal substances used legally or illegally. (12 Dec 1998) |
| immediate hypersensitivity | An exaggerated immune response mediated by antibodies, in particular IgE. See: allergy. (05 Mar 2000) |