langerhans cell histiocytosis involving maxilla and mandible

langerhans cell histiocytosis is a relatively rare unique disease process characterized by an abnormal proliferation of immature dendritic cells usually affecting children and young adults. jaws are involved in less than 10% of children with the disease while mandibular involvement in young children is uncommon and bilateral affection is very rare. the purpose of this report is to describe a unique and very rare case of simultaneous and bilateral occurrence of langerhans cell histiocytosis in both the jaws of a four-year-old boy.