Urticaria multiforme, first described in 1997, also called acute ring urticaria, is a clinical variant of acute urticaria. We relate the case of a 16-year-old adolescent with an extensive pruritic eruption of erythematous annular lesions of variable shapes, arciform, or polycyclic with an ecchymotic center. Urticaria multiforme is described in children aged from 4 months to 4 years, rarely in adolescents. As far as we know, this is the 4th case reported in the literature.
Dupont, M., Theunis, A., & Vanhooteghem, O. (2022). Urticaria multiforme in an adolescent: A rare benign rash not to be ignored. Clinical Case Reports, 10(9), e6270. https://doi.org/10.1002/ccr3.6270 (Original work published 2022)