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Words near each other
・ Erysiphe alphitoides
・ Erysiphe betae
・ Erysiphe brunneopunctata
・ Erysiphe cichoracearum
・ Erysiphe cruciferarum
・ Erysiphe flexuosa
・ Erysiphe graminis f. sp. avenae
・ Erysiphe graminis f.sp. tritici
・ Erysiphe heraclei
・ Erysiphe pisi
・ Erysiptila
・ Erysodienone
・ Erysthia
・ Erythema
・ Erythema ab igne
Erythema annulare centrifugum
・ Erythema chronicum migrans
・ Erythema dyschromicum perstans
・ Erythema elevatum diutinum
・ Erythema gyratum repens
・ Erythema induratum
・ Erythema marginatum
・ Erythema multiforme
・ Erythema multiforme major
・ Erythema multiforme minor
・ Erythema nodosum
・ Erythema toxicum neonatorum
・ Erythemis
・ Erythemis collocata
・ Erythemis simplicicollis


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Erythema annulare centrifugum : ウィキペディア英語版
Erythema annulare centrifugum

Erythema anulare centrifugum (also known as "Deep gyrate erythema,"〔 "Erythema perstans,"〔 "Palpable migrating erythema", and "Superficial gyrate erythema"〔) is a descriptive term for a skin lesion. The lesions form consists of redness (erythema) in a ring form (anulare) that spreads from the center (centrifugum). EAC was first described by Darier in 1916.〔J. Darier. De l’érythème annulaire centrifuge (érythème papulo-circineé migrateuse et chronique) et de quelques éruptions analogues. Annales de dermatologie et de syphilographie, Paris, 1916-1917, 5: 57-58.〕 Many different terms have been used to classify these types of lesions and it is still controversial on what exactly defines EAC. Some of the types include (deep and superficial) annular erythema, erythema perstans, erythema gyratum perstans, erythema gyratum repens, darier erythema (Deep gyrate erythema & Deep gyrate erythema) and erythema figuratum perstans.
==Symptoms==
Occurring at any age these lesions appear as raised pink-red ring or bulls-eye marks. They range in size from . The lesions sometimes increase size and spread over time and may not be complete rings but irregular shapes. Distribution is usually on the thighs and legs but can also appear on the upper extremities, areas not exposed to sunlight, trunk or face. Currently EAC is not known to be contagious, but as many cases are incorrectly diagnosed as EAC, it is difficult to be certain.

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