erythema

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erythema

(ĕr'əthē`mə), more or less diffuse redness of the skin due to concentration of an abnormally large amount of blood within the small vessels of the skin (hyperemia), as in burns. Erythema nodosum is often associated with systemic diseases such as tuberculosis and rheumatic fever. Tender, bright red, slightly elevated nodules develop along the shins. Erythema multiforme can have a number of causes, including viral and bacterial infection, chronic disease of the visceral organs, or allergic reactions to drugs.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Erythema

 

reddening of the skin caused by the dilatation of blood vessels. Erythema sometimes occurs by reflex action and disappears quickly, for example, when one feels ashamed or angry. With inflammation, the condition lasts longer. It appears as a result of exposure to chemicals and physical factors (friction, heat, cold, ultraviolet radiation) and in some infectious diseases (scarlet fever, measles, erythema infectiosum) and skin diseases (dermatitis). It also occurs as a result of poisoning and disturbances in blood circulation.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

erythema

[‚er·ə′thē·mə]
(medicine)
Localized redness of the skin in areas of variable size.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Towards understanding the pathology of erythema nodosum leprosum. Trans R Soc Trop Med Hyg.
International workshop on erythema nodosum leprosum (ENL)--consensus report; the formation of ENLIST, the ENL international study group.
The overall incidence of papulonodular lesions of skin is leprosy (22.67%), erythema nodosum leprosum (20%), cutaneous tuberculosis and trichoepithelioma (8% each), Prurigo Nodularis, actinomycosis and epidermoid cyst (6.67% each), syringoma and granuloma Annulare (5.33% each), basal cell carcinoma and Jessner lymphocytic infiltrate (4% each), and metastatic carcinoma (2.67%).
Erythema nodosum leprosum (ENL) recurrence is a serious complication of leprosy immunology that causes inflammation of the skin, nerves and other organs.
[4.] Verma KK, Pandhi RK: Necrotic erythema nodosum leprosum; A presenting manifestation of lepromatous leprosy.
There was history of rhinorrhea with nasal crusting and epistaxis, pedal edema and erythema nodosum leprosum lesions, which he developed thrice during his 3-year course of illness along with constitutional disturbances that resolved spontaneously, healing with postinflammatory hyperpigmentation.
Patients with diabetes, alcoholics and those who had reactional episodes [reversal reactions and erythema nodosum leprosum (ENL)] were excluded, as these are confounding factors in the diagnosis of neuropathic pain.
(1) They described a young female with multibacillary leprosy (MBL) and erythema nodosum leprosum (ENL).
Though the initial impression was suggestive of lepromatous leprosy with erythema nodosum leprosum, after careful history and examination a clinical diagnosis of NF 1 with coexisting borderline tuberculoid (BT) leprosy was made.
With only corticosteroids and clofazimine available to combat erythema nodosum leprosum (ENL) in some of his patients, he recognized the dramatic efficacy of the controversial drug thalidomide in managing ENL and lobbied the federal FDA (Food and Drug Administration) for approval of its use.
Lepromatous leprosy borderline lepromatous leprosy and mid borderline leprosy are included in the multibacillary types.5 The 2 common types of leprosy reactions type 1 or reversal reaction is mediated by an upgrade in cellular immune response to the bacterium and type 2 is a type III hypersensitivity reaction characterized by erythema nodosum leprosum.67 Nerve damage may occur early in tuberculoid disease but tends to be more insidious in lepromatous leprosy.