Approximately 10% to 20% of all cases of eosinophilic granuloma occur in th
e jaws. A palpable mass with or without pain is the most frequent presentin
g clinical feature. Less common clinical signs include gingivitis, loose te
eth, and oral ulceration with poor healing. We report a case of monostotic
mandibular eosinophilic granuloma in a 38-year-old woman that initially man
ifested mandibular body fracture, an unusual and poorly documented clinical
sign for this disease. The clinical and radiographic features, differentia
l diagnosis, and treatment plan of the case are presented.