Renal Autotransplantation After Yang–Monti Neoureter Procedure: Surgical Case Report and Brief Literature Review

To our knowledge, this is the first documented case of long-segment ureteral stricture as a sequela of brown recluse spider envenomation. The venom's prothrombotic and endothelial-damaging effects likely contributed to progressive ischemic injury and fibrosis, leading to bilateral stricture formation. While the Yang-Monti technique provided temporary urinary diversion, its long-term viability was limited, necessitating a definitive solution via renal autotransplantation. This case highlights the need for increased awareness of envenomation-related ischemic complications, particularly in patients presenting with delayed-onset ureteral obstruction. Future research should further explore envenomation-induced microangiopathy and optimal surgical management strategies for complex ureteral stricture disease.