" Eosinophilic granuloma" Mono ostotic type in a child

Eosinophilic granuloma (EG) is a solitary, non-neoplastic proliferation of histiocytes. EG is part of a spectrum of Langerhan's cell histiocytosis, formerly known as histiocytosis X.The male to female ratio is two to one. It occurs most commonly in children aged 5 to 10 and is uncommon in blacks.EG is normally symptomatic, local pain, swelling and tenderness are common. We report this case of Eosinophilic granuloma (EG) Mono ostotic type, in a 8 years female child, because of its rarity.