Bilateral duplex collecting system
Recurrent kidney infections.
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Delayed CT scan in coronal thin-VRT view. Both collecting systems have two ureters that join distally near the UVJ. Furthermore, numerous cysts can be seen in both kidneys.
2 case question available
A duplex kidney is one of the commonest congenital renal tract anomalies.
The incidence of duplex kidney is approximately 1%. Of this 1%, approximately 20% are bilateral in nature.
- 1. Santavá A, Utíkalová A, Santavý J. Heredity and origin of duplication of the pelvicalyceal collecting system. Acta Univ Palacki Olomuc Fac Med. 1991;126: 209-18. Pubmed citation
- 2. Share JC, Lebowitz RL. The unsuspected double collecting system on imaging studies and at cystoscopy. AJR Am J Roentgenol. 1990;155 (3): 561-4. doi:10.2214/ajr.155.3.2117358 - Pubmed citation