Renal Mass Biopsy is Associated With Fewer Radical Nephrectomies for Benign or Indolent Disease, Particularly for T1b Renal Masses.

Treatments received by T1RM patients undergoing RMB are different than when RMB is omitted, based on RMB results and several confounders. T1RM patients benefit from reduction in intervention for non-malignant disease, particularly when RN is planned. For every 7 biopsies of T1bRM performed, one RN was avoided.