GLANDULAR ODONTOGENIC CYST MIMICKING AMELOBLASTOMA IN A 78-YEAR-OLD FEMALE: A CASE REPORT

Abstract

<h3>Background</h3> Glandular odontogenic cysts (GOCs) may show radiologically similar findings with ameloblastoma. It is also interesting to explore the growth pattern of GOCs in elderly patients. <h3>Objective(s)</h3> The aim of this report was to describe a case of GOC with characteristic radiographic jaw features. <h3>Study Design</h3> A cystic lesion in the posterior mandible of a 78-year-old female was incidentally found. Periodic radiographs showed a unilocular lesion with a scalloped margin, external root resorption of the adjacent tooth, and cortical perforation. This lesion had changed from a small ovoid lesion to a more expanded lesion in a period of 4 years. The small lesion showed unilocularity with a smooth margin and a well-defined border, but the expanded lesion produced cortical perforation and a lobulated margin. The biopsy was done for final diagnosis. <h3>Results</h3> The radiographic diagnosis was an ameloblastoma, whereas the histopathologic examination revealed a GOC. <h3>Discussion/Conclusions</h3> This case shows that a GOC can arise in people in their 70s, changing from a unilocular lesion to an expanded, lobulated lesion over a period. Periodic radiographs showed the changes in the lesion shape and the lobular margin that took place during a period of 4 years. Furthermore, it is a rare case in that the above-mentioned radiographic changes were observed in the posterior mandible of an elderly woman.