Simultaneous Robot-Assisted Radical Nephrectomy and Sigmoid Colectomy Using the da Vinci 5 System.

Synchronous renal cell carcinoma (RCC) and colorectal cancer are uncommon, and the optimal surgical strategy remains controversial. We report a patient with synchronous RCC and sigmoid colon cancer successfully treated with a one-stage, robot-assisted combined approach using the da Vinci 5 system. A 60-year-old woman presented with severe anemia. Imaging revealed a left-sided renal tumor, sigmoid colon cancer, and a solitary pulmonary metastasis. Both tumors were considered surgical indications, and early intervention was required due to the risk of bowel obstruction. Robot-assisted radical nephrectomy, followed by robot-assisted sigmoid colectomy, was performed in a single session. The total operative time was 4 h 19 min, with minimal blood loss and no intraoperative complications. Simultaneous robotic resection for synchronous RCC and sigmoid colon cancer is feasible and safe in selected patients when supported by careful preoperative planning and multidisciplinary collaboration.