Abstract
A 12-year-old male patient was referred for evaluation of an expansive lesion in the left maxilla region. Computed tomography showed a hypodense lesion with well-defined margins measuring approximately 5 cm in its larger diameter associated with included left canine. Complete enucleation of the lesion was performed jointly with removal of the impacted tooth. Histopathologic examination revealed a benign lesion originating from the odontogenic epithelium characterized by proliferation of cuboid and spindle epithelial cells arranged predominantly in a solid arrangement, in which ductiform structures stood out. In association with this proliferation, a cystic lesion of an odontogenic nature was evidenced, characterized by a cavity covered by stratified squamous epithelium composed of few cell layers and a cystic capsule consisting of dense fibrous connective tissue. The final histopathologic diagnosis was adenomatoid odontogenic tumor associated with a dentigerous cyst. The patient is being followed up without clinical or radiographic signs of tumor recurrence.
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