Single-port retroperitoneal renal biopsy using standard urological instruments

Objective To describe the surgical technique and initial experience with a single-port retroperitoneal renal biopsy (SPRRB). Materials and Methods Between January and April 2013, five children underwent SPRRB in our hospital. A single 1.5 cm incision was performed under the 12th rib at mid-axillary line, and an 11 mm trocar was inserted. A nephroscope was used to identify the kidney and dissect the perirenal fat. After lower pole exposure, a laparoscopic biopsy forceps was introduced through the nephroscope working channel to collect a renal tissue sample. Results SPRRB was successfully perfo...