Pure cutaneous Langerhans cell histiocytosis resembling varicella

A 5-month-old boy presented with multiple, pinkish-yellow, umblicated, varicelliform vesicles on his trunk. The lesions first appeared on his scalp 2 months earlier. There was also an erythematous, moist and erosive eruption on both axillae, inguinal regions and intergluteal sulcus. He had been treated with topical antibacterial and antiviral therapies. Histopathological investigation of the lesions revealed the diagnosis of Langerhans cell histiocytosis. Systemic involvement was not detected, although detailed investigation was performed. We present our case because he had a varicelliform and intertriginous eruption but did not have internal organ and haematological involvement.