Bilateral duplex collecting system

Case contributed by Dr Boris Schulz


Recurrent urinary tract infections.

Patient Data

Age: 20 years
Gender: Female

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.

Case Discussion

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.

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