Ectopia renal cruzada fusionada. Reporte de caso.

Fused renal crossover ectopia is a rare entity within the spectrum of congenital anomalies of urinary tract development, with an estimated incidence of approximately one in 1000 live births and a male predilection in a two to one ratio when compared to the female population. This entity is usually asymptomatic in most patients. The presence of symptoms is usually linked to a spectrum of complications, including hydronephrosis, infections, bile-ureteral reflux and nephrolithiasis. Recognizing the low incidence of this anomaly and the importance of its identification, in this article we report a case from our institution, observed as an incidental finding in a contrasted abdominopelvic tomography for non-specific abdominal pain. [ABSTRACT FROM AUTHOR]