Annular erythema refers to a number of chronic annular and erythematous skin eruptions. The eruption usually begins as a small raised pink-red spot that slowly enlarges and forms a ring shape, while the central area flattens and clears.

Erythema annulare centrifugum is a chronic reactive form of annular erythema characterised by erythematous, circular, arciform, and polycyclic lesions, with a characteristic delicate scale behind the advancing edge (‘trailing scale’).

Erythema annulare centrifugum (EAC) is a chronic, reactive phenomenon of the skin presenting with arcuate or annular, erythematous patches or thin plaques that frequently exhibit scale along the inner portion of the advancing edge of lesions ("trailing scale") (picture 1A-D). EAC has been reported to occur in association with a wide variety of ...

2024年6月8日 · Erythema annulare centrifugum is an annular, erythematous lesion that appears as urticaria-like papules, enlarges centrifugally, and clears centrally. A fine scale, called a trailing scale, is sometimes inside the advancing edge. The lesion is classified as a reactive erythema and has been associated with many different conditions.

2018年9月1日 · Annular lesions can present in a variety of diseases. Knowledge of the physical appearance and history of presentation of these skin findings can help in the diagnosis. A pruritic, annular,...

2021年11月21日 · Annular erythema is not a diagnostic term but rather a description of a spreading erythematous eruption with an annular (ring-shaped) appearance. If the expansion of the rash is not uniform it may become arciform (arc …

Erythema annulare centrifugum is an idiopathic skin disorder characterised by red, ring shaped lesions with central clearing. It is also called annular erythema. Lesions may be classified into superficial or deep subtypes. Deep lesions are more elevated, with less scale and pruritus than superficial lesions.

2023年5月25日 · Erythema annulare centrifugum (EAC) is a rare skin rash. The rash has small red bumps that spread out from a central area. The bumps often form a ring-like pattern, but may spread into...

Erythema annulare centrifugum (EAC), is a descriptive term for a class of skin lesion presenting redness in a ring form (anulare) that spreads from a center (centrifugum). [2] It was first described by Darier in 1916.

2023年5月24日 · Annular dermatoses (AD) are a heterogeneous group of skin diseases, whose common feature is essentially the annular or circular arrangement of the lesions with centrifugal spreading [1]. They belong to the group of figurate dermatoses, to which can be added linear or serpiginous dermatoses, for example.