Renal oncocytoma: landscape of diagnosis and management.

Abstract

Renal oncocytoma represents between 6-12% of T1 renal tumours in surgical series (1-2). Contemporary imaging cannot differentiate oncocytoma from malignant renal cell carcinoma (RCC). Uptake of renal tumour biopsy in clinical practice has been variable (3) and surgery with partial or radical nephrectomy is the first-line in the management of RCC (4,5). Therefore, many patients with renal masses undergo empirical surgery for presumed RCC with post-operative histologic diagnosis of benign oncocytoma.