[Diagnostic and therapeutic problems in renal oncocytomas]

Area of Science:

• Urology
• Oncology
• Pathology

Background:

• Renal oncocytomas are a recognized tumor type with distinct histological and clinical features compared to renal cell carcinomas.
• Accurate pre- and intraoperative differentiation between renal oncocytomas and renal cell carcinomas is currently not feasible.

Observation:

• Three case reports and a literature review highlight the diagnostic and therapeutic challenges in managing renal oncocytomas.
• The lack of definitive diagnostic tools necessitates surgical intervention, typically nephrectomy.

Findings:

• Pure renal oncocytomas cannot be reliably distinguished from renal cell carcinomas using current diagnostic methods.
• Bilateral or multicentric renal oncocytomas may require a more conservative surgical approach, similar to that used for bilateral hypernephromas.

Implications:

• The diagnostic dilemma necessitates continued reliance on surgical management for renal oncocytomas.
• Future research should focus on developing reliable non-invasive diagnostic methods for renal oncocytomas.
• Conservative surgical strategies are crucial for managing multifocal or bilateral renal oncocytomas to preserve renal function.