Open Heminephrectomy in Unilateral Duplex Collecting System: A Case Report

A duplicated collecting system, characterized by the presence of two separate pelvicalyceal systems within a single kidney, is a rare congenital anomaly. Surgical intervention, such as open heminephrectomy, is often required in cases where complications arise, including recurrent infections, significant obstruction, or reflux. We report the case of a 29-year-old female who presented with recurrent urinary tract infections and flank pain with reflux. Imaging studies revealed a duplicated collecting system on the right side with significantly poor functioning upper moiety while preserving the healthy lower moiety. The patient tolerated the procedure well, with no intraoperative complications. Postoperative recovery was uneventful, and follow-up imaging confirmed the successful removal of the affected renal segment. The patient remained symptom-free at the two-month follow-up. Open heminephrectomy remains a viable surgical option for managing a symptomatic duplicated collecting system.