Presentation
CT performed for kidney stone protocol.
Patient Data
Age: 70 years
Gender: Male
From the case:
Supernumerary kidney
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Incidentally noted are 2 well formed kidneys on the left side and fused in the lower pole and not crossing the midline. Both kidneys are well formed and have a reniform shape.
Since his kidney function was borderline he has not received a contrast enhanced CT or MRI.
Case Discussion
This is a rare entity and fewer than 100 case reports have been described in the literature.
One needs to be aware of this uncommon congenital condition of different kinds of fusion of kidneys.
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