Ureter duplex

Classification according to ICD-10
Q62.5	Ureter duplex
ICD-10 online (WHO version 2019)

The ureter duplex is a congenital anomaly; instead of the normally single ureter of a kidney, there are two. Two ureters arise from a kidney , which extend completely separately to the bladder, cross in the pelvic area and open into the bladder in two separate ostia. The junction of the ureter, which arises from the lower renal pelvis, lies above that of the other ureter ( Meyer-Weigert rule ).

In contrast, the ureter fissus has two ureters per kidney that unite in front of the bladder.

More often than with the ureter fissus, vesicorenal reflux occurs in ureter duplex (from the bladder back to the kidney, usually via the ureter of the lower renal pelvis) , which can lead to kidney infections or ureterocele formation. Ectopic openings of the ureter are also more common.

The exact determination of the ureteral course is provided by a radiological retrograde contrast medium examination of the lower urinary tract.

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1. ↑ T. Gasser, G. Rutishauser: Basic knowledge of urology. 3. Edition. Springer-Verlag, 2006, ISBN 3-540-25637-7 , p. 38.

This article is about a health issue. It is not used for self-diagnosis and does not replace a diagnosis by a doctor. Please note the information on health issues !