The success rate of small renal mass core needle biopsy and its impact on lowering benign resection rate.

Background: Small renal mass (SRM) biopsy remains under-utilized due to stigma. Meanwhile, the alarmingly high benign findings in resected kidney masses highlight the need for improved preoperative diagnosis and patient selection.

Methods: The purpose of this study is to review the success rate of SRM biopsy and to evaluate its impact on patient management.