erythema

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Related to erythemic: erythematous

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.

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.

erythema

[‚er·ə′thē·mə]
(medicine)
Localized redness of the skin in areas of variable size.
References in periodicals archive ?
However, a condition known as "gotch" ear was manifest in all the tick-infested calves wherein the ears became edematous and erythemic near sites of tick attachment.
Changes in the dental chart such as new or recurrent dental and/or root caries; gingival and periodontal findings such as erythemic gingiva, tooth loss or loss of lamina dura; significant color, sensory or function changes in the oral mucosa, tongue and/or salivary glands; oral lesions indicating nutrient deficiency; polypharmacy; and chewing and swallowing difficulties indicate the need for dietary counseling.
The dose was estimated to be about one-fourth the minimal erythemic dose for these mice.