Abstract
A rare case of oncocytoma occurring on the left middle nasal meatus of a 33-year-old woman is reported. Only 14 cases of oncocytoma of the nasal cavity or paranasal sinuses have been reported in the world literature. This case was diagnosed by electron microscopy and histochemical examination. It showed the typical abundance of intracellular mitochondria.
Surgical treatment was performed. At eight months after the operation, there is no evidence of recurrence. Although oncocytoma is usually a benign tumor, several cases of malignant oncocytoma have been reported. Recurrence or metastasis sometimes occurs, so it is necessary to remove the tumor completely and perform careful follow-up.
