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Erythema annulare centrifugum (EAC), is a descriptive term for a class of skin lesion [2] presenting redness in a ring form (anulare) that spreads from a center (centrifugum). It was first described by Darier in 1916.
It is used to describe the rash in cutaneous larvae migrans, [3] erythema annulare centrifugum, [4] cutaneous pili migrans, [5] purpura annularis telangiectoides, ringworm, [6] balanitis circinata, [7] and some cases of bullous pemphigoid. [8]
Annular erythema of infancy (AEI) consists of self-limited eruptions of erythematous, annular to polycyclic patches and plaques. It is an idiopathic figurate erythema. [1] Over several days, a single lesion disappears without leaving behind any scale or hyperpigmentation. Mostly affecting the trunk, face, and extremities, this rash has no symptoms.
Figurate erythema is a form of erythema (reddening of the skin) that presents in a ring or an arc shape. An example is erythema marginatum. [1] Classical types include: [2] Erythema annulare centrifugum; Erythema marginatum rheumaticum; Erythema chronicum migrans; Erythema gyratum repens
Erythema annulare centrifugum Superficial types: [18] Mild spongiosis, parakeratosis and microvesiculation. "Coat-sleeve anomaly": tight lymphohistiocytic infiltrate surrounding superficial vessels; Deep lesions: Sharply demarcated perivascular mononuclear cell infiltrate in middle to deep dermis [18] Not otherwise specified [notes 2]
On Wednesday, an annular solar eclipse created a "ring of fire" effect across parts of South America, according to NASA.. Annular solar eclipses, which occur every one to two years, happen when ...
Erythema annulare centrifugum (deep gyrate erythema, erythema perstans, palpable migrating erythema, superficial gyrate erythema) Erythema gyratum repens (Gammel's disease) Erythema migrans (erythema chronicum migrans) Erythema multiforme; Erythema multiforme minor (herpes simplex-associated erythema multiforme) Erythema palmare; Generalized ...
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