A case of renal oncocytoma with concomitant caverbous hemangioma which was diagnosed by fine needle aspiration biopsy - KAYA, Muhsin; ÇETİNKAYA, Hülya and SOYUER, Işın and UZUN, Yusuf and KOCAOĞLU, Hilmi (Turkish Journal of Gastroenterology, 1997)