Renal oncocytoma overview

Renal oncocytoma Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Renal oncocytomas are relatively rare, and benign tumors.

Classification

There is no classification system established for renal oncocytoma.

Pathophysiology

On gross pathology, tan or mahogany brown, well circumscribed, and central scar are characteristic findings of the tumor of renal oncocytoma.

Causes

There are no established causes for renal oncocytoma.

Differential Diagnosis

Renal oncocytoma must be differentiated from renal cell carcinoma, metanephric neoplasms, and renal leiomyoma.

Epidemiology and Demographics

The incidence of renal oncocytoma increases with age; the median age at diagnosis is 55 years. The male to female ratio is approximately 2 to 1.

Risk Fctors

There are no established risk factors for renal oncocytoma.