Ureter fissus

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Classification according to ICD-10
Q62.5 Duplication of the ureter
ICD-10 online (WHO version 2019)

The ureter fissus is a ureteral abnormality with two ureters, but only one opening into the bladder.

It is a congenital abnormality in which there is a double ureter. In most cases, there is a double kidney before or a redundant renal pelvis. Two ureters arise from the kidney and join in front of the urinary bladder so that, as is normal, there is only one opening (ostium). In contrast, the ureter duplex has two completely separate ureters, i.e. also two openings into the bladder.

As a result of asynchronous peristalsis, the urine may flow retrograde from one ureter back into the other and rise there. A uretero-ureteral reflux occurs, also known as the yo-yo phenomenon . This can lead to colic-like symptoms.

Overall, the ureter fissus is rarely a disease. However, it can act as a complicating factor in urinary tract infections .

literature

  • R. Eichenauer, J. Sandmann, H. Vanherpe: Clinical Guide Urology. 3. Edition. Urban & Fischer, Munich Jena 2003, ISBN 3-437-22790-4 .