Retroperitoneal laparoscopic partial nephrectomy for multiple T1b renal carcinomas in a solitary kidney: A case report

This case highlights the effective use of retroperitoneal laparoscopic partial nephrectomy (RLPN) in a 73-year-old female with two large renal carcinomas in her solitary kidney, including a 7 cm deeply infiltrating mass. The RLPN procedure successfully resected both tumors with a thermal ischemia time of 28 minutes, 110 minutes of surgery, and only 30 mL of blood loss. The patient's postoperative recovery was excellent, with no hemorrhage or urine leakage and only a mild increase in serum creatinine levels. Discharged after 10 days without dialysis, this case supports RLPN as a safe, effective method for similar renal tumors.