Malignant oncocytoma of the nasal cavity.

Malignant oncocytoma of the major salivary glands is uncommon. Those of the endocrine, minor salivary and mucous glands are certainly rare. A case of a slowly-growing, low-grade malignant oncocytoma of the nasal cavity in a 50-year-old male, with no lymph node or distant metastases or local invasion of vital adjacent structures, and treated with combined radiotherapy and radical surgery, has been presented. The literature has been briefly reviewed, and the histological types; the electro-microscopic, histochemical and clinical pictures; and the outlines of treatment of oncocytomas have been discussed.