Abstract
Odontogenic keratocyst (OKC) was defined by the World Health Organization in 2005 as a benign intraosseous odontogenic tumor; however, in 2017, it was reclassified as an odontogenic cyst. A 70-year-old man attended the stomatology clinic after an incidental discovery on radiographic examination. The panoramic image showed a multilocular, well-circumscribed, radiolucent area surrounded by a sclerotic border in the posterior mandibular region on the right side. Based on the radiographic features, a diagnostic hypothesis of OKC and ameloblastoma were suggested, and incisional biopsy was performed. The pathologic findings indicated OKC. Because of the patient's age, surgical treatment with severe curettage, peripheral osteotomy, and cauterization of the bone, in combination with insertion of a titanium plate to reduce the risk of mandibular fracture, was carried out. A histopathologic diagnosis of OKC was confirmed in the surgical tissue, and the patient is in follow-up.
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