Odontogenic fibromyxoma arising from the periodontal ligament.

A case is reported of an intraosseous odontogenic fibromyxoma which presented as an epulis and appeared to arise from the periodontal ligament of an upper lateral incisor. True neoplasms rarely present in this fashion, and the literature reveals no report of an intraosseous myxomatous neoplasm exhibiting such clinical features. Evidence supporting the periodontal ligament origin of the lesion is presented and discussed.