Bronchial oncocytoma.

Authors :: de Aquino RT
Magliari ME
Saad R Jr
Neto VD
Filho JE
Neto CD
Capelozzi VL
Source :: Sao Paulo medical journal = Revista paulista de medicina [Sao Paulo Med J] 2000 Nov 09; Vol. 118 (6), pp. 195-7.
Publication Year :: 2000
Abstract: Context: Oncocytomas are generally small and present slow growth. Finding of the tumor usually occurs incidentally. Their incidence is higher among male patients. Oncocytomas in mucous bronchial glands are extremely rare.<br />Case Report: A 35-year-old male who presented bronchial oncocytoma. The tumor was found after bronchoscopy that investigated an atelectasis of the upper left lobe. Histological examination with optical microscopy revealed a mature neoplasm formed by ovoid cells with thin, granular, eosinophilic cytoplasm and small nuclei similar to oncocytes. Electron microscopy showed mitochondrial hyperplasia. A three-year follow-up after thoracotomy followed by lobectomy and removal of the bronchial tumor was uneventful.