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).

How is annular erythema treated?

Annular erythema usually clears up by itself. Eruptions may last for a few weeks to many years (the average duration is 11 months). Most cases of annular erythema require no treatment (and no curative therapy is known). However, topical corticosteroids may be helpful in reducing redness, swelling and itchiness.

Are erythema migrans annular?

Erythema chronicum migrans is the cutaneous hallmark of Lyme disease. One or more large erythematous patches may appear anywhere on the skin. The lesions expand centrifugally, sometimes with central clearing, giving rise to annular patches.

What are annular lesions?

DEFINITION. Annular skin lesions are figurate lesions characterized by a ring-like morphology. Although plaques represent the most common presentation of annular lesions, lesions may also be macular, nodular, or composed of grouped papules, vesicles, or pustules.

Is erythema annulare Centrifugum 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 rash has central clearing?

Erythema multiforme, which is due to a hypersensitivity reaction, presents with annular, raised lesions with central clearing. Lichen planus characteristically appears as planar, purple, polygonal, pruritic papules and plaques.

What means ring like for annular skin lesions?

Does erythema annulare itch?

Granuloma annulare is a rash that often looks like a ring of small pink, purple or skin-coloured bumps. It usually appears on the back of the hands, feet, elbows or ankles. The rash is not usually painful, but it can be slightly itchy. It’s not contagious and usually gets better on its own within a few months.

Which is the best description of annular erythema?

Annular erythema is a descriptive term that refers to a number of chronic annular and erythematous skin eruptions. Other descriptive terms used to classify these types of lesions include: Erythema annulare. Erythema annulare centrifugum.

What are the annular lesions of nummular eczema?

Erythema multiforme, which is due to a hypersensitivity reaction, presents with annular, raised lesions with central clearing. Lichen planus characteristically appears as planar, purple, polygonal, pruritic papules and plaques. Nummular eczema presents as a rash composed of coin-shaped papulovesicular erythematous lesions.

How can you tell if you have an annular lesion?

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, erythematous patch that grows centrifugally should prompt evaluation for tinea corporis.

What kind of rash is an annular rash?

Annular lesions can be partial (arciform) and coalesce to form polycyclic (ringed), serpiginous (wavy), and gyrate (revolving) patterns. Classically, the annular or arciform lesions have an advancing outer erythematous edge with a trailing (inner) scaly edge. The rash may be itchy.