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Definition of a Supernumerary Kidney
A supernumerary kidney is a very rare additional kidney with renal function, own blood supply, organ capsule and pyelocalyceal 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.
Rare, in the literature exist 80 case reports (Bernik et al, 2001).
Sign and SymptomsThere are no other associated anomalies. Abdominal pain, fever, tumor, or arterial hypertension may be caused by the supernumerary kidney.
Treatment of a Supernumerary Kidney
Treatment depending on symptoms (most common nephrectomy of the supernumerary kidney).
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- 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