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A routine cadaveric dissection of a 77 year old female with metastatic breast cancer demonstrated an ectopic unilateral left duplex ureter. The duplicated ureters originated separately at the renal pelvis, communicating 2 cm below the originating point. This anatomical variant is estimated to represent 1% of all renal tract anomalies, occurring in 0.5% of the total population. The clinical outcomes of duplex ureters are well documented in current literature.