Pityriasis lichenoides. Not everything is chickenpox. A case report

Pityriasis lichenoides is a benign inflammatory disease of unknown etiology. There are two types of this entity: an acute form (pityriasis lichenoides et varioliformis acuta) and a chronic one (pityriasis lichenoides chronica). Both are common in children and young adults. We describe a case of pityriasis lichenoides, discuss its clinical presentation, diagnosis and treatment. An eight-year-old child who presented erythematous papular lesions in centripetal distribution, these lesions didn´t improve in 3 weeks, and new lesions appeared in that period. The biopsy of the lesions confirmed pityriasis lichenoid. After antibiotic and corticosteroid treatment all lesions disappeared. Pityriasis lichenoides acute is a rare design that represents a diagnostic and therapeutic challenge to the physician. The diagnosis of this condition is suspected clinically and confirmed by histology. It does not have specific treatment.