Figurate erythema
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| Figurate erythema | |
|---|---|
 | |
| Concentric circles in Lyme disease (example of a figurate erythema) | |
| Specialty | Dermatology |
| Symptoms | Multiple red, wavy rings, concentric circles, arcs[1] |
| Types | Classic types:erythema annulare centrifugum, erythema gyratum repens, erythema migrans, erythema marginatum[1] |
Figurate erythema describes a rash linked to various skin conditions, characterized by one or more red, wavy rings, concentric circles, or arcs, typically recognised as annular patterns.[1][2]
Four classic types have been reported as erythema annulare centrifugum, erythema gyratum repens, erythema migrans and erythema marginatum, though the pattern is seen in numerous other conditions.[3][4] Causes may also be divided into infectious, malignant, and drug reactions.[5]
Signs and symptoms
Figurate erythema is typically characterized by multiple red, wavy rings, concentric circles, and arcs, typically recognised as annular patterns.[1] The initial lesion is typically a slightly raised reddish bump which extends outwards and may have a trailing scale and central clearing.[5] The lesions may be fixed, transient, or migratory.[5]
