Supernumerary Kidney
Definition of a Supernumerary Kidney
A supernumerary kidney is a very rare additional kidney with renal function, own blood supply, organ capsule and pyelocaliceal system. Next to the supernumerary kidney, there are two normal kidneys. The supernumerary kidney shares in 50% the ureter and ostium with a normal ipsilateral kidney.
Epidemiology
Rare, in the literature exist 80 case reports (Bernik et al, 2001).
Sign and Symptoms
There are no other associated anomalies. Abdominal pain, fever, tumor, or arterial hypertension can be generated by the supernumerary kidney.Treatment of a Supernumerary Kidney
A symptomatic supernumerary kidney should be operated (most common removed).
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References
- Bernik u.a. 2001 BERNIK, T. R. ; RAVNIC, D. J. ; BERNIK, S. F. ; WALLACK, M. K.:
- Ectopic supernumerary kidney, a cause of para-aortic mass: case
report and review.
In: Am Surg
67 (2001), Nr. 7, S. 657–9
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