Erysipeloid

Synonym(s)

Erysipeloid of Rosenbach Definition

Acute bacterial infection of traumatized skin caused by the microorganism Erysip-elothrix rhusiopathiae (insidiosa)

Pathogenesis

Causative organism, E. rhusiopathiae, enters the skin through scratches or pricks; organism produces enzymes that help it dissect through the tissues; inflammation produced when immune system activated against foreign antigen

Clinical manifestation

Food handlers (home makers, farmers, fishermen, and butchers) at increased risk of acquiring the infection Localized form: well demarcated, bright-red-to-purple, warm, tender plaques with a smooth, shiny surface, most commonly on the hands

Diffuse cutaneous form: multiple, well demarcated, violaceous plaques with an advancing border and central clearing Systemic form: localized areas of swelling surrounding a necrotic center; sometimes presenting as follicular, erythematous papules; endocarditis as complication of septicemia

Differential diagnosis

Cellulitis; erysipelas; fixed medication reaction; erythema nodosum; leishmaniasis

Therapy

Penicillin*

References

Reboli AC, Farrar WE (1989) Erysipelothrix rhusiopathiae: an occupational pathogen. Clinical Microbiology Reviews 2(4):354-359

Erythema annulare centrifugum 217

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