“…Histiocytes are often admixed with lymphocytes and a few eosinophils and cells typically express non-Langerhans cell histiocytic markers including CD11b, CD11c, CD14b, CD68 and HAM56. 4,5 The differential diagnosis includes the non-Langerhans cell histiocytosis (non-LCH) disorders, particularly eruptive histiocytoma and juvenile xanthogranuloma, as well as urticaria pigmentosa. Frequently, clinical differentiation is possible, as the number of the lesions as well their distribution pattern mainly in the cephalic region usually allow for distinction of benign cephalic histiocytosis from other non--LCH disorders.…”