Partial Hydronephrosis in a Patient with Horseshoe Kidney and Bilateral Duplicated Ureter / 대한비뇨기과학회지

ABSTRACT

The horseshoe kidney results from fusion of the two renal blastema at the time when they lie closeset together, usually at the fifth or sixth weeks of intrauterine life and occurs in 0.25% of the general population. Hydronephrosis, infection, calculus formation and concomitant other malformation are associated in the one third of patients. The duplicated ureter occurs in 6 to 10% congenital associated anomalies. This report concerns a case of rare combination of horseshoe kidney, bilateral duplication of ureter with obstruction of one ureteropelvic junction causing symptomatic hydronephrosis due to renal artery of right low moiety, which was treated with heminephrectomy.