The article discusses the case of a 12-year-old patient who was presented with erythematous maculopapular rash on the trunk and extremities. Topics covered include the results of the physical examination and biopsy from a patch on the right arm, the diagnosis of pityriasis lichenoides et varioliformis acuta (PLEVA) and the confirmation of the diagnosis of PLEVA through histological assessment of a skin biopsy.