Squamous odontogenic tumor: A case report and review of literature

Abstract

The squamous odontogenic tumor (SOT) is a rare, benign, locally infiltrative neoplasm of the jaws that appears to originate from the rests of Malassez, gingival surface epithelium or from remnants of the dental lamina. SOT was first described by Pullon et al. (1975). Since then there has been paucity in the number of reported cases, especially in the Indian subcontinent. The tumor is often asymptomatic, although it can present with symptoms of pain and tooth mobility. The characteristic radiographic appearance is that of a triangular-shaped unilocular radiolucency associated with the roots of erupted, vital teeth and has a predilection for the anterior maxilla and the posterior mandible. Histologically, the tumor is characterized by the formation of variably sized nests and cords of uniform, benign-appearing, squamous epithelium with occasional vacuolization and keratinization. We report a case of SOT occurring in a 58-year-old male in the anterior mandible with unusual localization and appearance.

Multicentric Squamous Odontogenic Tumor: A Case Report and Review of the Literature

“…Males are slightly more affected than females (1.2:1) and no ethnic predilection is observed [36]. In the mandible, the posterior region is more commonly affected while maxillary lesions have a tendency to occur in the anterior-canine to premolar area [36,37,41]. In rare instances, maxillary tumors may exhibit a locally aggressive behavior [36,46].…”

“…Occasionally, a multilocular presentation has been reported [5,23]. Multicentric SOT is extremely rare; at the time of this review, only seven cases have been reported in the English language literature [3,14,16,17,26,33,41]. Here we report the eighth case of central multicentric SOT affecting both maxilla and mandible.…”

“…Radiographically, solitary SOT classically presents as a triangular or semicircular unilocular radiolucency between the roots of adjacent teeth, and in some cases it can be associated with an impacted tooth [3,16,17,41]. In addition, SOT may also present as multilocular radiolucencies [5,23].…”

“…SOT may present as asymptomatic or symptomatic lesions. [37,41]. The symptomatic lesions are associated with bone expansion and teeth mobility [37].…”

Squamous odontogenic tumor: A rare tumor of premolar region of mandible: a case report

“…In most cases, the tumor is incidentally discovered on routine dental radiographs, which reveal a generally well-defined, radiolucent, unilocular, triangular-shaped image between or along the roots of adjacent teeth, resembling severe periodontal bone loss (Parmar et al 2011). Histologically it is formed by multiple islands of squamous, nonkeratinized, well-differentiated and rounded epithelial cells scattered in a fibrous tissue stroma without any indication of cellular atypia (Badni et al 2012 ).…”