Urinary tract infection.
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The right kidney appears normal in size and shape with normal location.
On the left, there are two well-formed fused kidneys with normal shape. They have approximatively the same size with separated pelvicalyceal systems and ureters. Normal renal excretion.
CT-IVU features of a supernumerary kidney. It is considered a rare entity, less than 100 cases were reported in the literature. In this case, both native and accessory kidneys have approximatively the same size with no reduced excretion.
The main differential diagnosis of the supernumerary kidney is a duplex kidney.
Additional contributor: ZE. Boudiaf, MD CHU Constantine
- Wouter Mebis, Benjamin Peters, Thijs van der Zijden. S-shaped Kidney: A Rare Occurrence of Supernumerary Kidney with Fusion-malrotation. (2018) Journal of the Belgian Society of Radiology. 102 (1): 73. doi:10.5334/jbsr.1666 - Pubmed
- Suresh J, Gnanasekaran N, Dev B. Fused supernumerary kidney. (2011) Radiology case reports. 6 (4): 552. doi:10.2484/rcr.v6i4.552 - Pubmed