What does annular erythema look like?

Annular erythema may occur at any time throughout life, from infancy to old age. 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. There may be an inner rim of scale.

What is annular erythematous?

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-like) or polycyclic (two or more connected rings).

What causes an annular rash?

In adults, the most common etiology of annular lesions is tinea, a superficial fungal infection of keratinized tissue. While tinea may be readily identifiable, a wide variety of clinical entities mimic these infections, leading to confusion and, often, misdiagnosis.

Is EAC an autoimmune disease?

Erythema annulare centrifugum (EAC) is an unusual skin condition that appears as recurrent erythematous eruptions in the form of small and large annular plaques [1]. It is associated with various autoimmune disorders, infections, and few neoplastic conditions.

What drugs cause erythema annulare Centrifugum?

Which medications may cause erythema annulare centrifugum (EAC)?

  • Amitriptyline.
  • Azacitidine.
  • Chloroquine.
  • Cimetidine.
  • Estrogen.
  • Etizolam.
  • Finasteride.
  • Hydrochlorothiazide.

Does erythema annulare Centrifugum go away?

If there is no underlying disease, an EAC rash usually clears up by itself. This can take several weeks or months.

How do you get rid of erythema annulare Centrifugum?

Erythema annulare centrifugum (EAC) is usually self-limited. Topical steroids usually cause involution of the treated lesions, but they do not prevent the occurrence of new lesions or recurrence of the eruption. Systemic or injection steroid therapy is effective, but the eruption returns once these drugs are withdrawn.

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