Robot‐Assisted Partial Nephrectomy for Multiple Synchronous Renal Tumors in Unilateral Kidney Using Hinotori Surgical System: A Case Report

• Published in: IJU case reports Vol. 8; no. 5; pp. 475 - 479
• Main Authors: Ozawa, Kento, Watanabe, Hiromitsu, Watanabe, Kyohei, Matsushita, Yuto, Tamura, Keita, Motoyama, Daisuke, Otsuka, Atsushi, Inamoto, Teruo, Miyake, Hideaki
• Format: Journal Article
• Language: English
• Published: Australia John Wiley & Sons, Inc 01.09.2025; Wiley
• Subjects: Body mass index; hinotori; multiple renal tumors; Patients; Pseudoaneurysm; Robotic surgery; robot‐assisted partial nephrectomy; Surgeons; Tomography; Tumors; Urology; Veins & arteries; Japan; hinotori; robot‐assisted partial nephrectomy; multiple renal tumors
• ISSN: 2577-171X; 2577-171X
• DOI: 10.1002/iju5.70070

ABSTRACT Introduction Multiple synchronous renal tumors (MSRT) in unilateral kidney are clinically rare. Simultaneous resection for multiple tumors with RAPN is complicated and challenging. Herein, we report the successful resection of three synchronous renal tumors located in unilateral kidney with RAPN using the hinotori surgical robot system. Case Presentation A 75‐year‐old man was diagnosed with multiple left renal tumors (45 mm and 20 mm in diameter) that presented very close to each other. We performed RAPN using hinotori and excised the tumors simultaneously. Postoperative renal function was maintained. No complications were identified. The three histological types were distinct: ccRCC, pRCC, and small renal angiomyolipoma. Conclusion To the best of our knowledge, this is the first report of MSRT in unilateral kidney successfully treated with RAPN using hinotori.