erythema marginatum - Health Topics
Erythema marginatum rheumaticum – This is a characteristic type of annular erythema that occurs in about 10% of first attacks of ARF in children; it is very rare in adults. If you or your child has a rash that looks like erythema marginatum, see a doctor. The rash is not dangerous in itself, but could indicate a serious underlying condition.
Understanding the Context
Erythema marginatum is a skin reaction caused by inflammation, often noticed during an episode of acute rheumatic fever. It is a transient rash that can turn white when pressure is applied, doesn't itch, and is characterized by flat, discolored areas. Erythema marginatum is reactive inflammatory erythema seen most commonly in association with acute rheumatic fever. Although a rare cutaneous manifestation, it is of utmost diagnostic value for acute rheumatic fever as well as other rare disorders.
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Key Insights
Erythema marginatum is described as the presence of pink rings with pale centers and rounded or serpiginous margins on the trunk and inner surfaces of the arms and legs which spread outwards in a circular shape and come and go (evanescent) for as long as several months. Erythema marginatum (EM) is a rare, transient rash resulting from an inflammatory reaction within the skin layers. It presents as a clinical sign rather than a standalone disease. The rash is non-pruritic, meaning it does not itch, and is generally not painful. Discover the causes, symptoms, and treatment options for erythema marginatum, including its connection to rheumatic fever.
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This case highlights the importance of prompt recognition of erythema marginatum as a presentation of ARF. Untreated ARF increases the risk of rheumatic heart disease and death.