Efficacy of Neoadjuvant Chemotherapy on Nephron-Sparing Surgery for Wilms Tumor in Horseshoe Kidney

In brief

This commentary addresses surgical decision-making for Wilms tumor in horseshoe kidney, emphasizing that nephron-sparing approaches must preserve >50% of renal parenchyma to avoid functional equivalent of nephrectomy. The authors contribute to ongoing discussion about standardizing feasibility criteria for partial nephrectomy in this anatomic variant.

• Nephron-sparing surgery for Wilms tumor in horseshoe kidney requires >50% parenchymal preservation to avoid functional unilateral nephrectomy.
• Removing one renal moiety plus isthmus in horseshoe kidney is functionally equivalent to complete nephrectomy in normal two-kidney anatomy.
• Standardized feasibility criteria are needed to guide nephron-sparing approaches in horseshoe kidney Wilms tumor cases.
• Anatomic considerations in horseshoe kidney demand higher preservation thresholds than conventional partial nephrectomy for Wilms tumor.

Written by the GCMD Library team from the article.