Small renal masses may be observed, removed with partial nephrectomy or destroyed with an energy modality when anatomy and patient fitness fit published criteria.
Cryoablation, radiofrequency ablation and microwave ablation are the most common percutaneous tools. Irreversible electroporation is discussed in selected cases where tumour proximity to the collecting system or vessels makes heat-based ablation less attractive, subject to local experience and ethics approval.
Contrast-enhanced CT or MRI schedules after ablation differ by centre. Your team will explain how they define technical success and when biopsy might be reconsidered.
See IRE (NanoKnife) for the generic mechanism of irreversible electroporation.
You can ask for a second opinion on imaging, diagnosis and treatment options before you decide.