Mondo Description Annular epidermolytic ichthyosis (AEI) is a rare clinical variant of epidermolytic ichthyosis (EI) characterized by the presence of a blistering phenotype at birth and the development from early infancy of annular polycyclic erythematous scales on the trunk and extremities.

Uniprot Description A skin disorder resembling bullous congenital ichthyosiform erythroderma. Affected individuals present with bullous ichthyosis in early childhood and hyperkeratotic lichenified plaques in the flexural areas and extensor surfaces at later ages. The feature that distinguishes AEI from BCIE is dramatic episodes of flares of annular polycyclic plaques with scale, which coalesce to involve most of the body surface and can persist for several weeks or even months.