Urethral doubling in children and adolescents

Urethral doubling is a rare congenital malformation of the lower urinary tract. A little more than 200 cases various forms this defect have been described in literature worldwide. We present clinical case duplication urethra combination with megaureter only functioning kidney. In patient, we encountered previously undescribed anomaly within generally accepted classification kidney collecting system true diverticulum bladder and descending orthotopic ureterocele.