ODONTOGENIC KERATOCYST ASSOCIATED WITH AN INCLUDED THIRD MOLAR: CASE REPORT

Abstract

Odontogenic keratocyst arises from the remnants of dental lamina either in the mandible or in the maxilla. The posterior mandible is the most frequent site involved. A 19-year-old male patient undergoing dental treatment presented a well-delimited hypodense image around the crown of tooth 48 included during tomographic examination. The removal of tooth 48 and enucleation of the lesion were performed, which presented significant drainage of dark yellow secretion. Histopathologic analysis showed a cyst with a fibrous wall lined by a folded, parakeratinized epithelium of varying thickness, basal layer arranged palisaded, and the lumen of the cavity was filled with abundant keratinized content, leading to the diagnosis of odontogenic keratocyst. In the reassessment of the case 6 months after removal of the lesion, a new computed tomography was performed, in which new bone formation in the lesion area was observed, with no signs of relapse. Odontogenic keratocyst arises from the remnants of dental lamina either in the mandible or in the maxilla. The posterior mandible is the most frequent site involved. A 19-year-old male patient undergoing dental treatment presented a well-delimited hypodense image around the crown of tooth 48 included during tomographic examination. The removal of tooth 48 and enucleation of the lesion were performed, which presented significant drainage of dark yellow secretion. Histopathologic analysis showed a cyst with a fibrous wall lined by a folded, parakeratinized epithelium of varying thickness, basal layer arranged palisaded, and the lumen of the cavity was filled with abundant keratinized content, leading to the diagnosis of odontogenic keratocyst. In the reassessment of the case 6 months after removal of the lesion, a new computed tomography was performed, in which new bone formation in the lesion area was observed, with no signs of relapse.