Renal eosinophiloma

Renal oncocytoma is a type of renal adenoma, which is relatively rare in clinical practice, accounting for about 4.3% of renal parenchymal tumors. Typical cases of benign tumors are unilateral lesions, 10% are multiple, and a few are bilateral lesions. More men than women. Masses vary in size, with an average diameter of 6 cm. Rough specimens are yellow-brown or light brown, with a dense central fiber band with fiber trabeculae.