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Filling defects in small bowel urinary conduits

E S Amis, J J Cronan, R C Pfister

    AJR. American Journal of Roentgenology
    |October 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

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    Radiographic imaging helps identify urinary diversion issues like stones or tumors. Definitive diagnosis of loop filling defects may require endoscopic biopsy.

    Area of Science:

    • Urology
    • Radiology
    • Surgical Oncology

    Background:

    • Urinary diversion using small bowel conduits is a common surgical procedure.
    • Radiographic evaluation is crucial for assessing the integrity and function of these conduits.
    • Identifying filling defects within the conduit is essential for patient management.

    Observation:

    • This study reviewed five patients with small bowel urinary diversion conduits presenting with discrete filling defects.
    • The observed defects included ureteral stones, antirefluxing ureteral nipples, metastatic bladder carcinoma, and a loop construction anomaly.
    • Radiographic techniques employed were excretory urography, loopography, and percutaneous pyelography.

    Findings:

    • Radiographic studies, combined with knowledge of the surgical technique, can often characterize loop filling defects.

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  • Stones were identified in two patients.
  • Other identified defects included ureteral nipples, metastatic carcinoma, and a surgical construction defect.

    • Implications:

    • Accurate radiographic interpretation aids in differentiating various causes of filling defects in urinary diversion conduits.
    • Endoscopic biopsy may be necessary for definitive diagnosis when radiographic findings are inconclusive.
    • This highlights the importance of multimodal diagnostic approaches in managing patients with complex urinary diversions.