Abstract
In an 1 year 6 month old male with solitary eosinophilic granuloma of the mandible, histopathological examination and radiographic skeletal survey were essential for diagnosis. In 16 Japanese patients reported previously, solitary eosinophilic granuloma of the mandible was tended to heal spontaneously over time. We treated our patient with surgical curettement only and fobllowed him closely. Five months has passed since surgery and satisfactory bone repair has proceeded spontaneously.