Calcifying odontogenic epithelial tumor

Abstract

Introduction: The calcifying epithelial odontogenic tumor or Pindborg tumor is a benign neoplasm that accounts for less than 1% of odontogenic tumors. It typically occurs in adults but can also affect children, showing variable biological behavior with invasive potential. Radiographically, it is characterized by a radiolucent lesion with mixed radiopaque areas. The mandible is the most commonly affected site, and the recommended treatment is wide margin resection to reduce the risk of recurrence. Clinical case: A case is reported of a 9-year-old patient with no relevant medical history who presented with swelling in the attached gingiva of the left posterior-inferior sector. The clinical examination showed a lesion 3 cm in diameter, firm, painless, pale pink in color, and with a slightly lobulated surface, located in the area of the dental organ 75 up to the retromolar region. The X-ray and tomography revealed a radiolucent image with irregular margins, Reabsorption of corticals, displacement of 36 and anomalies in the development of germs 34 and 35. The excisional biopsy confirmed the diagnosis of TOEC, identifying polygonal epithelial cells and amyloid deposits with Liesegang rings. Conclusion: This case highlights the importance of early diagnosis and timely surgical treatment with adequate safety margins, which were performed on this patient to avoid compromising the dentofacial development of our patient who was still growing. Additionally, it emphasizes the need for a multidisciplinary approach to achieve optimal functional and aesthetic results, as well as rigorous follow-up to prevent recurrences.