| 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 multiple red, wavy rings, concentric circles, and arcs, typically recognised as annular patterns. [1]
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. [2] [3] Causes may also be divided into infectious, malignant, and drug reactions. [4]
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. [4] The lesions may be fixed, transient, or migratory. [4]
Distinguishing between the varying types may be easier by describing its location, how rapidly it expands, and the characteristics of its border. [1] Diagnosis is often by exclusion. [2] To confirm a diagnosis, a biopsy may be required. [1]
The term was first described by Thomas Fox in 1889. [3]
 | This cutaneous condition article is a stub. You can help Wikipedia by expanding it. |