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Ectopic supernumerary kidney, a cause of para-aortic mass: case report and review
T R Bernik1, D J Ravnic, S F Bernik
1Department of Surgery, Saint Vincents Hospital, New York, New York, USA.
The American Surgeon
|July 14, 2001
Abstract:
Ectopic supernumerary kidney is a rare congenital urinary tract abnormality. Because of the scarcity of published cases and atypical presenting symptomatology this entity frequently causes a diagnostic as well as therapeutic dilemma. We report a case of an unusually symptomatic supernumerary kidney that presented as back pain. Noncontrast CT scan showed a suspicious left-sided para-aortic mass, which prompted a percutaneous biopsy. Intravenous contrast CT scan revealed an anatomically and functionally free supernumerary kidney. The approach to diagnosis as well as management of supernumerary kidneys is discussed herein.