importance of considering rare disorder as eosinophilic granuloma in differential diagnosis of the common oral disease

Introduction eosinophilic granuloma (eg) is one of the subsets of langerhans cell histiocytosis oral presentation may comprise multiple alveolar lesions accompanied by bleeding, gingival inflammation and teeth mobility ,which may encourage patients to seek a dentist. case presentation in this report, a case of an 18 year old male patient with multifocal lesions of eg in both jaws is presented. conclusions although lch remains an enigma for clinicians to date because of its ambiguous presentations, but timelydiagnosis could be critical for prognosis. and dentists could have an important role in diagnosis of rare disorders like eg.