erythema


Also found in: Dictionary, Thesaurus, Medical, Financial, Wikipedia.

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 ?
Erythema elevatum diutinum: a clinical and histopathologic study of 13 patients.
Both groups of patients showed a significant reduction in pruritus, erythema, vesicles, and desquamation from baseline across time at the end of 4 weeks (P < 0.
Physiological desquamation, iatrogenic bruises and ecchymosis were more common in male neonates, whereas sebaceous hyperplasia, erythema neonatorum and cutis marmorata were more common in female neonates.
The primary efficacy endpoint was at day 29 and defined as the proportion of patients with at least a 2-grade reduction in erythema (improvement) from baseline (pre-dose on day 1) on both the clinician erythema assessment and subject self-assessment (composite success) measured at hours 3, 6, 9 and 12 versus vehicle.
Clinical features, diagnosis, and treatment of erythema multiforme: a review for the practicing dermatologist.
4,5) Squamous cell carcinoma can also arise, although infrequently, in the patches of erythema ab igne.
The numbers of ear-viewing decreased irritancy, redness and erythema were observed and recorded.
9] A fatal case of erythema necroticans, the cause of death being septicemia secondary to skin ulcers and URTI ENL has been reported by Sethuraman et al and Petro et al.
Fatigue and skin erythema are associated with radiation exposure.
Erythema induratum represents a cutaneous "id" reaction to an extracutaneous mycobacterial infection, most commonly in the setting of occult or active tuberculosis (hence "tuberculid").
There are several reported atypical manifestations of T2R such as, Lucio's phenomenon, erythema nodosum necroticans, Vesicullobullous lesions, and Erythema Multiforme (EMF) like lesions.