Squamous odontogenic tumor was first described by Pullon et al.’ in 1975 and was thought to evolve from the rests of Malassez in either the periodontal space or the gingival mucous membrane. It is a rare tumor; since it was first recognized, only ten cases have been reported. I-3 The youngest individual who was reported to have squamous odontogenic tumor was 11 years old,’ and the oldest was 65 years old.* The peak incidence is found in the second decade.“3 The distribution of the patients according to sex is 6:4 male to female. Of the ten reported cases, six were located in the maxilla and two in the mandible; the remaining two involved both jaws. l-3 Although the tumor has been most frequently found in the incisor-canine and premolar regions, a few of the reported cases have involved the molar regions.lA3 A most important clinical finding was loose teeth.‘q3 Clinical examination revealed slight tumefaction in two other cases.2,3 In one patient the tumor was discovered during a routine dental examination.’ Radiographically, the tumor exhibits either sharply demarcated, sclerotic or slightly lytic areas bordering the roots of unerupted or erupted teeth or the area from which a tooth has been extracted.‘,* Gross examination usually reveals masses of tissue with a rubbery consistency that ranges from greyish-brown to pink. ‘** Pullon et al. described the microscopic features as consisting of squamous epithelial islets within loose, moderately dense connective tissue. Surrounding these islets are cells reminiscent of basal layer cells. Some squamous epithelial cells contain intracytoplasmic hyaline bodies. One of the most important diagnostic criteria is calcified foci surrounded by keratin lamellae. The squamous epitheha1 islets may show areas of focal cystic degeneration. Doyle et al.* reported calcifications in the stroma. The connective tissue surrounding the