Sonographic Detection of a Urinoma/Biloma Combination

Abstract

Urinoma formation is usually a consequence of trauma to the urinary collecting system. It is a collection of urine that is outside of the kidneys, ureters, or bladder. Similarly, a collection of bile outside of the biliary system is a biloma. Diagnosis of these is possible with a combination of imaging techniques such as sonography and computed tomography. A case is presented of a combination urinoma/biloma that formed after penetrating trauma to the superior pole of the right kidney and lower segment of the right liver lobe. Computed tomography was used to diagnose the pathology, and sonography was used to further characterize the lesion and place the drain that was used as treatment. Use of both of these modalities allowed the patient to receive a quick diagnosis and appropriate intervention.

The role of point-of-care ultrasound in the assessment of pelvic urine leakage and diagnosis of urinoma

“…For the diagnosis of urinoma, an ultrasound examination is a valuable screening tool to assess for free intraperitoneal fluid and the cystic nature of the mass. Additionally, CT scans are alternative imaging modalities for evaluating masses within the retroperitoneum [ 13 , 14 ]. Larger urinomas may demand the placement of a percutaneous drain, nephrostomy tube, or open surgery along with correction of the underlying cause.…”