Calculi in Three of the Four Ureters in a Case of Bilateral Complete Duplication, Complicated by Pyonephrosis in One Obstructed Moiety-A Rare Case Report.

Duplex ureters, a urinary tract anomaly affecting 0.8% of the population, are typically asymptomatic. This case report describes an exceptionally rare presentation of bilateral complete ureteral duplication with calculi in three out of four ureters and pyonephrosis in one obstructed renal moiety. Although most cases of ureteral duplication are incidental findings, this report highlights a rare instance where bilateral complete duplication presented with symptomatic complications requiring intervention.