| ABPA | actin-binding protein, autosomal form; allergic bronchopulmonary aspergillosis |
|---|---|
| ACD | absolute cardiac dullness; absolute claudication distance; acid-citrate-dextrose [solution]; actinom... |
| AECD | allergic eczematous contact dermatitis |
| AGA | accelerated growth area; allergic granulomatosis and angiitis; American Gastroenterological Associat... |
| Al | allantoic; allergic, allergy; aluminum |
perennial allergic rhinitis
| dermatitis, allergic contact | A contact dermatitis due to allergic sensitization to various substances. These substances subsequently produce inflammatory reactions in the skin of those who have acquired hypersensitivity to them as a result of prior exposure. (12 Dec 1998) |
|---|---|
| encephalomyelitis, allergic | An experimental demyelinating disease produced in animals by injections of myelin fractions in order to study the relationship between hypersensitivity and the demyelinating diseases. (12 Dec 1998) |
| experimental allergic encephalitis | <pathology> An autoimmune disease that can be induced in various experimental animals by the injection of homogenised brain or spinal cord in Freund's adjuvant. The antigen appears to be a basic protein present in myelin and the response is characterised by focal areas of lymphocyte and macrophage infiltration into the brain, associated with demyelination and destruction of the blood-brain barrier. Sometimes used as a model for demyelinating diseases, although whether this is entirely justifiable is not clear. (18 Nov 1997) |
| experimental allergic encephalomyelitis | <pathology> An autoimmune disease that can be induced in various experimental animals by the injection of homogenised brain or spinal cord in Freund's adjuvant. The antigen appears to be a basic protein present in myelin and the response is characterised by focal areas of lymphocyte and macrophage infiltration into the brain, associated with demyelination and destruction of the blood-brain barrier. Sometimes used as a model for demyelinating diseases, although whether this is entirely justifiable is not clear. (18 Nov 1997) |
| extrinsic allergic alveolitis | <radiology> Exposure to organic dust less than 5u in size, recurrent episodes of fever, chills, dry cough, dyspnea following exposure after 6 hr interval (10-40% assymptomatic), spontaneous resolution in 1-2 days, farmer's lung, Pandora's pneumonitis, bird-fancier's lung, mushroom worker's lung, bagassosis, malt worker's lung, maple bark disease, suberosis, sequoiosis see: acute extrinsic allergic alveolitis, hypersensitivity pneumonitis (12 Dec 1998) |
| atopic eczema | <dermatology> An inflammatory condition of the skin that includes redness, itching and oosing vesicular lesions which become scaly, crusted or hardened. Causes include hypersensitivity to chemicals, metals (nickel) or plants (for example Poison Ivy) or chronic irritation detergents or soaps. Anxiety, stress and depression may all play a role in the exacerbation of eczema. Those with atopic eczema may be discovered to have an increased eosinophil count in their blood. Treatment often includes mild anti-pruritic lotions and corticosteroid creams. Careful avoidance of any irritating substances will be mandatory. (27 Sep 1997) |
| baker's eczema | Allergic eczema due to contact with flour, yeast, or other ingredients handled by bakers. (05 Mar 2000) |
| varicose eczema | Eczema occurring over areas in which the skin has been compromised by varicosities. (05 Mar 2000) |
| chronic eczema | Thickening of skin with accentuated skin lines in eczema. Synonym: chronic eczema, eczema hypertrophicum. (05 Mar 2000) |
| weeping eczema | A moist, eczematous dermatitis. (05 Mar 2000) |
| winter eczema | Eczema resulting from accelerated evaporation of moisture (including insensitive sweat) from the cutaneous surface; occurs as dry crackled plaques, usually on the extremities, but not infrequently also on the trunk in any season under circumstances (occupational, environmental) of excessively rapid drying out of the skin. Synonym: eczema craquele. (05 Mar 2000) |
| hand eczema | Eczema that predominantly and persistently affects the hands; of multiple causation, including allergic, industrial, irritant, dyshidrotic, bacterial, and atopic mechanisms. (05 Mar 2000) |
| seborrheic eczema | <dermatology> A form of inflammatory skin rash that results from an over activity of the sebaceous glands in the skin. Treatment often includes a mild hydrocortisone-containing cream. (27 Sep 1997) |
| stasis eczema | Eczematous eruption on legs due to or aggravated by vascular stasis. (05 Mar 2000) |
| nummular eczema | <dermatology> A form of eczema that is characterised by coin-shaped patches of inflamed skin. The cause is unknown but is related to a hypersensitivity reaction. A family history for allergies or atopic dermatitis is common in affected individuals. (13 Nov 1997) |