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.

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 ?
new cases (August 9-December 31) Suspected Probable Confirmed Adverse events ([dagger]) ([section]) ([paragraph]) Eczema vaccinatum -- ** -- -- Fetal vaccinia -- -- -- Generalized vaccinia -- -- -- Inadvertent inoculation, -- -- -- nonocular Ocular vaccinia -- -- -- Progressive vaccinia -- -- -- Erythema multiforme major -- -- -- (Stevens-Johnson syndrome) Myo/pericarditis -- -- -- Postvaccinial encephalitis -- -- -- or encephalomyelitis Pyogenic infection of -- -- -- vaccination site Total no.
new cases (May 10-June 20) Adverse events Suspected + Probable (ss) Eczema vaccinatum -- ** -- Fetal vaccinia -- -- Generalized vaccinia 1 -- Inadvertent inoculation, nonocular 1 -- Ocular vaccinia -- -- Progressive vaccinia -- -- Erythema multiforme major -- -- (Stevens-Johnson syndrome) Myo/pericarditis 2 2 Post vaccinial encephalitis or -- -- encephalomyelitis Pyogenic infection of vaccination site -- -- No.
During the vaccination program, no cases of eczema vaccinatum, erythema multiforme major, fetal vaccinia, postvaccinial encephalitis or encephalomyelitis, progressive vaccinia, or pyogenic infection of the vaccination site have been reported (Table 1).
During the vaccination program, no cases of eczema vaccinatum, erythema multiforme major, fetal vaccinia, postvaccinial encephalitis or encephalomyeliris, progressive vaccinia, or pyogenic infection of the vaccination site have been reported (Table 1).
During the vaccination program, no cases of eczema vaccinatum, erythema multiforme major, fetal vaccinia, post-vaccinial encephalitis or encephalomyelitis, progressive vaccinia, or pyogenic infection of the vaccination site have been reported (Table 1).