A squamous odontogenic tumor is defined as a benign odontogenic neoplasm according to the WHO classification. Histopathological findings include islands of well-differentiated squamous epithelium in a fibrous stroma. We report the case of a squamous odontogenic tumor with resorption of the maxilla.
A 50-year-old man presented with painless swelling of the right upper gingiva. Oral examination showed extensive swelling of the right anterior maxilla with ulceration of the gingiva. CT and MR findings revealed a mass extending to the nasal cavity and maxillary sinus. Histopathological examination of a biopsy specimen suggested that the lesion was an intraosseous carcinoma. En bloc resection of the right maxilla was performed. The histopathological diagnosis of the surgical specimen was a squamous odontogenic tumor. Postoperative healing was uneventful.
