Resumo

LIRA, Alexandre Aires Braga de et al. Keratocystic odontogenic tumor. RSBO (Online) [online]. 2010, vol.7, n.1, pp. 95-99. ISSN 1984-5685.

INTRODUCTION: The keratocystic odontogenic tumor (KOT) is a lesion that requires special considerations due to its clinical behavior and specific histopathological aspects. This study aims to present a case of KOT emphasizing its radiological and histopathological characteristics. CASE REPORT: In a panoramic radiograph a female 43-year-old patient presented a radiolucent unilocular image located in the left side of the posterior region of the mandible, extending up to ascending branch. She was submitted to computed tomography scan followed by an incisional biopsy for subsequent histopathological examination, in which a pathological cavity with parakeratinized epithelium was observed, showing basal layer containing cells with nuclear hyperchromatism, thus confirming a KOT. CONCLUSION: The dentist's knowledge regarding odontogenic tumor lesions, especially KOT, is primary important in order to provide an accurate diagnosis of this lesions and to avoid their growth, which could result in significant injuries to the patient.

Palavras-chave : odontogenic tumor; keratocystic odontogenic tumor; enucleation.