Etiology • A developmental odontogenic cyst arising from cystic degener-
ation of the enamel organ prior to formation of hard tissue
Clinical Presentation • Invariably has the microscopic appearance of odontogenic
keratocyst • Rare • Radiolucent lesion of jaw • Occurs in place of a tooth, usually a third molar
Radiographic Findings • A well-defined radiolucency • Most commonly in the posterior mandibular quadrants
Diagnosis • Radiograph shows a cyst instead of a tooth • Histologically an odontogenic keratocyst
ation of the enamel organ prior to formation of hard tissue
Clinical Presentation • Invariably has the microscopic appearance of odontogenic
keratocyst • Rare • Radiolucent lesion of jaw • Occurs in place of a tooth, usually a third molar
Radiographic Findings • A well-defined radiolucency • Most commonly in the posterior mandibular quadrants
Diagnosis • Radiograph shows a cyst instead of a tooth • Histologically an odontogenic keratocyst
Differential Diagnosis • Odontogenic tumor • Other odontogenic cyst • Central giant cell granuloma
Treatment • Enucleation with bone curettage
Prognosis • Significant recurrence rate • Long-term follow-up mandated