Dr. med. Dirk Manski

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Urinoma: Definition and Diagnosis

A urinoma is an accumulation of urine in the body outside the urinary tract. In most cases, urinoma is caused by injuries to the kidneys, ureters, urinary bladder or urethra. Other causes include sudden urinary retention (most commonly ureteral stones) or after surgery of the urinary tract. The symptoms are usually initially mild. Later: pain, peritonitis, ileus, abscesses, fever, sepsis or electrolyte disturbances develop. Urinoma presents in ultrasound imaging as an echo-free or hypoechoic fluid accumulation. Further diagnostic procedures are abdominal CT scan, cystography or urethrography, depending on the fluid localization (Titton et al., 2003). Laboratory analysis of the urinoma fluid shows a significant increase in creatinine compared to serum levels.
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Titton, R. L.; Gervais, D. A.; Hahn, P. F.; Harisinghani, M. G.; Arellano, R. S. & Mueller, P. R. Urine leaks and urinomas: diagnosis and imaging-guided intervention.
Radiographics, 2003, 23, 1133-1147

  Deutsche Version: LUTS: Beschwerden des unteren Harntrakts