左側下大静脈を有する患者におけるロボット支援腎尿管全摘除術：症例報告

Left-sided inferior vena cava (LS-IVC) is a rare congenital vascular anomaly that can complicate retroperitoneal surgery because of altered venous and lymphatic anatomy. We report a case of robot-assisted nephroureterectomy performed in a patient with LS-IVC. A 67-year-old woman with right ureteral urothelial carcinoma underwent surgery after careful preoperative vascular assessment. Tailored robotic port placement enabled safe single-docking nephroureterectomy without vascular injury. This case highlights the importance of anatomical awareness and strategic surgical planning when performing robotic surgery in patients with rare vascular anomalies.