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"Ballooned" calyceal diverticulum with ureteral obstruction.

C M Sandler, B D Toombs

    Journal of the Canadian Association of Radiologists
    |June 1, 1980
    PubMed
    Summary

    Calyceal diverticula are rare urinary tract findings. This study highlights their potential to cause ureteral obstruction and mimic a renal mass, emphasizing the need for careful diagnosis.

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    Area of Science:

    • Urology
    • Radiology
    • Nephrology

    Background:

    • Calyceal diverticula are uncommon congenital anomalies of the kidney.
    • Their detection typically occurs during routine urography or investigations for unrelated symptoms.

    Observation:

    • Two cases presented with calyceal diverticula associated with significant ureteral obstruction.
    • The diverticula exhibited a "ballooned" appearance on imaging.

    Findings:

    • This rare combination of calyceal diverticula and ureteral obstruction can be misdiagnosed.
    • The "ballooned" appearance may lead to an erroneous diagnosis of a renal mass.

    Implications:

    • Clinicians should consider calyceal diverticula in the differential diagnosis of renal masses, especially when ureteral obstruction is present.
    • Prompt recognition of this association is crucial for appropriate management and to avoid diagnostic delays.

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