[Focal therapy for small renal masses : Observation, ablation or surgery]

Area of Science:

• Urology
• Oncology
• Nephrology

Background:

• Rising incidence of renal cell carcinoma (RCC), particularly early-stage (T1a).
• Increasing prevalence of chronic renal failure necessitates kidney-sparing treatments.
• Need for multimodal focal therapies to preserve renal function.

Purpose of the Study:

• To review current trends in nephron-sparing therapies for renal cell carcinoma.
• To discuss the shift towards partial nephrectomy and alternative ablative treatments.
• To highlight the role of risk stratification and active surveillance.

Main Methods:

• Review of current surgical and ablative treatment modalities for renal tumors.
• Comparison of radical versus partial nephrectomy outcomes.
• Evaluation of minimally invasive approaches and novel ablation techniques.

Main Results:

• Partial nephrectomy has become the gold standard, often performed laparoscopically.
• Percutaneous radiofrequency ablation and laparoscopic cryoablation are common alternatives, with limitations for central tumors.
• Emerging ablation techniques show promise but are largely experimental for RCC.

Conclusions:

• Partial nephrectomy is preferred for small renal masses, with laparoscopic approaches offering lower invasiveness.
• Ablative therapies provide alternatives for high-risk patients, requiring accurate diagnosis via biopsy.
• Active surveillance is a viable option for select cases, representing a controlled delay in treatment.