"Anomalías en la posición renal". Kidney position abnormalities.

Kidney development is a complex process that begins during the fifth to ninth weeks of life. Different types of renal congenital anomalies exist; however, they are rare and usually asymptomatic. Renal ectopia is a rare malformation that affects 0.01-0.05% of patients. Of all the locations, the most frequent is the pelvic (55%). We present a case of a 21-year-old man with bilateral renal ectopia.