Abstract
Adenomatoid odontogenic tumor (AOT) is an asymptomatic lesion with slow but progressive growth that can be associated with impacted teeth. Its prevalence is highest in patients in the second decade of life. It is more common in the maxilla than in the mandible. Radiographically, AOT appears as a well-circumscribed, unilocular image, involving a non-erupted tooth. Histologically, AOT is composed of spindle-shaped, polygonal or cuboidal epithelial cells. A 15-year-old female presented with facial swelling in the nasolabial sulcus region, on the right side. Intraoral examination revealed a firm submucosal nodular growth, together with maxillary buccal and palatal cortical expansion, maintaining mucosal integrity. On the affected side, the right upper lateral incisor and right upper canine were absent. Panoramic radiography and computed tomography were performed. The patient underwent an excisional biopsy, and the surgical sample was submitted to histological examination. The histopathological diagnosis was AOT.
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