Ureteric Duplication Anomalies

Incomplete and complete duplication anomalies of the upper urinary tract are estimated to be present in up to 0.8% of the normal population. Majority of these anomalies have normally developed renal moieties and cause no functional problems. When detected during the antenatal scans, it is of paramount importance that the clinician keeps in mind that the vast majority of these anomalies are benign, incidental fi ndings.

Ureteric duplications overall are more common in females than in males. In 15% of patients the ureteric duplication is bilateral. There is an increased incidence of up to 12% within some families, suggestive of an autosomal dominant inheritance.