Annular erythema of infancy

Medical condition

Annular erythema of infancy (AEI) consists of self-limited eruptions of erythematous, annular to polycyclic patches and plaques. It is an idiopathic figurate erythema. 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. The diagnosis of AEI is made through a combination of histopathologic and clinical examinations. The disease first manifests in infancy, and if treatment is not received, the periodic eruptions usually stop after the first year of life.

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