Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6879
Peer-review started: April 17, 2021
First decision: May 10, 2021
Revised: May 15, 2021
Accepted: June 28, 2021
Article in press: June 28, 2021
Published online: August 16, 2021
The majority of renal cell carcinomas are single lesions; unilateral synchronous multifocal renal carcinoma (USMRC) is rarely reported and poses a treatment challenge for urological oncologists.
A 56-year-old man was hospitalized for pain and discomfort in the right kidney area for 6 d. Contrast-enhanced computed tomography demonstrated cT1a renal tumors at the lower pole of the right kidney and a cT1b renal tumor at the middle dorsal portion of the right kidney. The patient underwent retroperitoneal laparoscopic partial nephrectomy (RLPN). There were no complications peri-opera
RLPN is a safe, effective, and feasible for the management of USMRC, which can obtain equivalent oncological results with optimal renal function preservation.
Core Tip: Unilateral synchronous multifocal renal carcinoma (USMRC) is defined as having more than two malignant tumors with a spacing ≥ 1 cm in one kidney. USMRC is rarely reported and nephron-sparing surgery for USMRC is difficult. We describe a patient with USMRC who underwent retroperitoneal laparoscopic partial nephrectomy (RLPN). There were no complications peri-operatively. Histopathology revealed clear cell renal cell carcinoma at the lower pole of the right kidney and chromophobe renal cell carcinoma at the middle dorsal portion of the right kidney. No tumor bed recurrence or metastasis was observed on imaging and his renal function remained stable during the 12-mo follow-up. Thus, RLPN is safe, effective, and feasible for the management of USMRC.